deep sinkhole swallowed several vehicles and tents. incredible. >> that does it for us. our coverage continues from cnn in atlanta. this is "cnn newsroom" live from los angeles. >> eye to eye, but as far apart as ever. the u.s. and russian presidents meet for the first time in years amid rising tensions over syria, i isis and eastern europe. do the numbers add up? >> plus, water flowing water on mars and with that, the possibility grows that we are not alone. hello, everybody. great to have you with us. we would like to welcome our viewers in the united states and all around the world. >> "newsroom" l.a. starts right now.

good to have you with us,ern. it is the meeting rch had been waiting for. u.s. president barack obama and his russian counterpart vladimir putin. it began with a formal, some say frosty handshake. 90 minutes later no one was surprise with the results. the two men talked first and ukraine and then syria. >> mr. obama insists the syrian dictator must go while mr. putin continues to back assad and make clear his intention is to fights terrorism in syria but not to send in troops to fight isis. >> on ukraine, president obama reiterated the support for the country's sovereignty and called on russia to implement the peace accord. >> the division between obama and putin were obvious as they traded barbs at the speeches. >> chief u.n. security correspondent has the report. >> reporter: a tense meeting with syria at the top of the

agenda. earlier president obama took to the u.n. stage to make an impassioned defense of diplomacy hailing progress with iran and cuba. >> we, the nations of the world, cannot return to the old ways of conflict and coercion. >> reporter: and making clear he is now open to negotiations to end the relentless war in syria. >> the united states is prepared to work with any nation, including russia and iran, to resolve the conflict. >> reporter: still, presidents obama and putin sharing a toast at a u.n. luncheon sounding unlikely partner in peace. obama calling bashar al-assad a tyrant. >> when a dictator slaughters tens of thousands of his own people, that is not just a matter of one nation's internal affairs. >> reporter: president putin, a bull walk against terrorism. >> translator: we think it is an enormous mistake to refuse to cooperate with the syrian governmentnd its armed forces

valiantly fighting terrorism face to face. >> reporter: and missing from either speech, specifics on bridging those differences to end the fighting and the flood of refugees. the two leaders were equally apart on ukraine. president obama called russia's continuing occupation there a challenge to peace worldwide. >> we cannot stand by when the sovereignty and territorial integrity of a nation is flagrantly violated. it could happen to any nation gathered here today rb president putin blamed the u.s. for stirring what he described a so-called democratic revolutions in the mideast and beyond. with grave consequences. >> translator: do you realize now what you've done? >> president obama and putin met at the u.n. 90 minutes. they discussed both ukraine and syria, but the white house saying that they left there with a fundamental disagreement on the role that bash shah al-assad can play in any political

solution. they did agree however a political solution is the goal. jim schuitto, at the u.n. adding to the tensions, reports the united states plans to upgrade its nuclear arsenal based in europe. senior international correspondent matthew chance is joining us live from moscow. matthew, what has been mr. putin's response now from the the reports coming out of germany? >> well, those reports came out of germany about a week ago. since then, there's been reaction from the kremlin that, look, they'll take counter measure steps if these reports prove to be true. i mean, the reports were first broadcast by zed, a german television network, saying the united states plans to upgrade not just bring in new stuff but upgrade its existing nuclear arsenal in one particular location in germany. and there's been no specific detail from the russians about

what they would do. but behind closed doors, analysts of the situation here in russia, are saying that one option for russia is that it could choose to move ballistic missiles or tactical missiles into its enclave in a small area of territory that russia has between belarus and poland. it's right in the center, detached from the mainland of russia and right in the center of the european continent. obviously that would be potentially a dangerous threat. but more importantly, it just, you know, makes the -- the relationship between russia and the midwest even more problematic. >> but away from the public slaying match we saw at the u.n., is there at least a possibility of putin and obama raising the prospect maybe of working together to broker some kind of political solution for syria? >> yeah, i think that's pretty clear that they are going to have to work together. not least because russia has

been determined in its efforts to back the syrian government of ba shishir al-assad and give mu by putting its own military on the ground. there have been satellite images of russia's most advanced fighter jets on the ground in syria. some of its most high-tech battle tanks, surface-to-air missiles. it's preparing other bases as well which could possibly receive russian troops if necessary. though the kremlin of course has ruled outputting actual forces on the ground in terms of army forces. but, yes, certainly it's muscular response to the challenge in syria. so the united states really has no option but to work with russia. they set up a military commission to coordinate the two militaries to make sure there are not any unexpected and unwanted confrontations between

the russian military and the u.s. military. of course, the u.s. is leading air strikes against isis positions in syria. so that's been set up. in a sense, they already working together. but to what extent they can forge an agreement about what comes after the syrian civil war is still very much to be decided. of course, very much divided on whether assad should have a role or not after the war ends. >> matthew chance live for us there in moscow where he has just gone seven minutes past 7:00 on a tuesday morning. thank you, matthew. key adviser to bashir assad says syria welcomes u.s./russian cooperation to stop the fighting there. >> exclusive to cnn's hala gorani and the russian build-up in syria. >> whatever russia is sending in order to fight terrorism and the president putin said that we are interested in fighting terrorism and, may i draw the attention of

your spectators to the fact that yesterday an agreement between russian, iran, syria, and iraq was signed in baghdad in order to coordinate their efforts for fighting terrorism. it is very difficult, it's very difficult to see the problem here, hala, from seeing the problem from europe or from russia. it is our people who are being killed, it is our blood who is being shed, it is terrorism that is striking at us. and if you ask any other person today he will tell you that president putin wasn't speaking logic. president putin was feeling the pulse of what is happening in that region. >> many of the jihadist fight for isis come from outside syria and outside the region. they keep coming despite president obama's call last year at the u.n. to squeeze the flow of isis recruits. so this year the president plans to end his u.n. visit with another summit.

he wants the country of origin to focus on the issues driving young recruits to isis in the first place. well, let's get more perspective on this now from cnn international diplomatic editor nic robertson who joins us from london. another year, another u.n. obama summit on combating isis and violent extremism. given that last year's gathering does not appear to have changed very much on the ground, what are the expectations for tuesday's meeting? >> well, i think that perhaps dimed a little in the prospect that does seem to be very ground that has subamericaed from the unga so far towards a political settlement because i think the general acceptance is that unless you get peace and stability on the ground in syria, then that is going to -- isis is going to be able to continue to use that as magnet to draw people. all the numbers that are being produced or the numbers of people that are going to syria and iraq, attracted by isis, those numbers continue to climb.

it's not just the unga last year but you had the nato leaders agreeing to share intelligence, agreeing to better controlled borders around syria, agreeing that they would do more to stop people flowing from their countries. and although some people are defecting from isis and are disappointed and disillusioned with isis and some are coming back home, isis continues to be a magnet. if there was to be a real way forward that was going to be different in terms of tackling isis, some of that would have grown out of a political road map for stabilizing syria. and that's the key thing that is missing here. we've heard from president putin, we've heard from president obama. they've had their 90-minute bilateral meeting. as jim schuitto was saying earlier, the key thing that came out of that was the failure to agree on the future of president bashir al-assad. europe, the united states says that he can't be a lasting part of the future. talk about a transition.

russia says he's there to stay for the time being. iran says the same. they're all major players. isis are going to be the ones that will benefit from this current situation. that's the fundamental that will make or break isis over the next year. >> we should be watching very closely to see if anything substantive emerges. nic robertson, appreciate the perspective. cuban president raul castro will meet with u.s. president barack obama on tuesday. second face-to-face meeting since announcing diplomatic relations renewed. >> on monday president castro lauded cuba's relationship with the u.s. but also called for a u.s. embargo to the country. the cuban people should be compensated for the economic hardships they're enduring. people in taiwan are checking the damage after a powerful typhoon made left-hand fall on monday. more than half a meter of rain fell. that's nearly two feet of water. as typhoon battered the mountains in the country's

northeast region, now concerns about flooding and land sides. >> the big storm had travel disruptions and schools were closed. water supplies were also suspended. heading now towards china. officials are preparing for the worst despite indications the storm has weakened from since hitting taiwan. let's go to find out where the storm is heading and just how bad will it be once it makes landfall there in china? >> it's all a rain story at this point. it has been a rain story for a lot of places so far in the past 24 hours. rainfall totals in the past 24 hours. in northern taiwan, over 700 millimeters. 28 inches has come down. in los angeles, if you are tuned in on the west coast in los angeles, that would take two years to get that amount of rainfall. in recent years it would be five years of rainfall to accumulate what they've seen in a 24-hour

period. bring the typhoon into the picture here. it's literally a shell of itself. what it's done is peeled back the record books. one of the strongest wind gusts we've ever observed in japan since 1966. there's a island just east of taiwan called yonaguni island. it's give vent to 181 mooils per hour. a commercial jet airline at takeoff has that speed. a high thet call category 6 would be give rent to that wind gusts. last time winds were this strong in japan were the top of mt. fuji in 1976. the highest density of tallest mountains in the world, any island the taiwan. but i want to show you what is left of this storm system. the imagery as far as the satellite imagery. about a 15 million people dealing with this and at this point it is a category 1 equivalent storm system. we'll bring in the per expect i as far as what the profit track

is. the wind down to 140 cph, 75 to 80 miles per hour. you look at the storm system, it has lost all characteristics as far as any major eye with it. certainly rapid weakening in place. it will interact with the province. it loses far more characteristics of the tropical nature. it's going to be predominantly a rain event. six to ten inches or 150 to 200 plus millimeters. one of the main areas of concern right there, population for the metro, city of around 8 million people. right there to the north, fuzhou, 7.1 million people. it is a major concern over this region and population density still very high across the interior portions of china. color contours there, 800 to over 1,000 people per square millimeter as you work away from the coastline. still a big story for much of

eastern china. >> okay, pedram. let's bring in james reynolds, a storm chaser. he joins us on the phone from northeastern taiwan. describe conditions right now. what are you experiencing? >> well, conditions have vastly improved as the typhoon is moving away, compared to what we were like this time 12 hours ago when the force of the storm was impacting the northeast coast. the winds have completely died down now in the northern part of the island. and the rain has stopped. so that is good. >> james, appreciate the update on conditions there in northeastern taiwan. stay safe. thanks for joining us. another story we're following, wall street has moved to the asia pacific markets. dow jones closed down more than 300 points on monday. let's see what's happening right now. that was the dow there.

it was down almost 2%. there has been a sell-off across asia. the nikkei started out falling 3% at the open. right now though the numbers are down by 3 1/2%. sha shanghai composite down more than 3%. kospi down just a touch. clearly what is happening in -- on wall street rather is now spreading across asia. all markets there are down. we'll see what happens when markets open across europe. a short break here. after months of talking about it, donald trump finally some details. he reveals, not a lot of details but some americans will be able to tell the irs, i win. >> i win. and the show is now his. we'll talk about trump and the brave plans for "the daily show." laura baker is about to refinance her home. her daughter lilly is about to spell the word "scary"

for the first time. neither is afraid. buy in. quickenloans/home buy. refi. power. big day? ah, the usual. moved some new cars. hauled a bunch of steel. kept the supermarket shelves stocked. made sure everyone got their latest gadgets. what's up for the next shift? ah, nothing much. just keeping the lights on. (laugh) nice. doing the big things that move an economy. see you tomorrow, mac. see you tomorrow, sam. just another day at norfolk southern.

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are getting their satireized shoe. >> the south african was attributed to the show for eight months before being chosen for the top spot. he said the show will remain a satire but he will make some changes. >> and he did. >> noah takes over the show, comparisons with stewart is uneftable. >> tough call. we saw the premier and says noah's got his own style. >> hey, john. hey, isha. was trevor noah funny? yes. but a very different host from jon stewart. "the daily show" is an american institution, valued around the world for a satsatiracle look a the news. here's one of the best moments from the premier. >> the truth is now i'm in the chair and i can only assume this is as strange for you as it is

for me. jon stewart was not only a late night host but our voice, in many ways our political dad. that weird because dad has left. and now -- and now it feels like the family has a new step dad, and he's black. >> it's going to take weeks, months, and maybe even years to fully see and judge trevor noah's version of the show. but think about all the differences that he represents. jon stewart is in his 50s. he was shepherding this show for over a decade. actually more than 15 years. trevor noah, on the other hand, is 31 years old. he brings multi-culturalism to the show. he's on outsider, native of south africa, who brings a millennial perspective to "the daily show." it won't be as much as a media criticism show. jon stewart loved to make fun of cnn and fox news.

when i asked trevor if he's going to be focusing quite as much on cable news as punch lines he said, i'll probably look just as much as buzzfeed or vox for fodder for comedy. he's eager to make barb or jokes about entertainment and sports as well as campaign news. he'll have more musical performance on the show. ryan adams later this week. and he'll also try to incorporate more of the correspondents that we didn't see as an when jon stewart was leading the show in recent years. but he will continue to focus on politics. he has chris christie as his first political guest on wednesday, new jersey governor and republican candidate. so it will be a chance to see what trevor noah is like sitting down with a big high-profile politician. like i said, it's going to take weeks, months, even years to fully evaluate trevor noah. he's different from stewart, but then again, stewart was truly

irreplaceable. it makes sense for noah to kree yat his own, brand new version of "the daily show." >> thanks to you for that. let's get more on how trevor noah did. >> executive i'd or of "the rap", online news organization covering entertainment and news. great to have you with us. >> thank you. >> how did he do? >> a plus plus plus plus. i loved it. >> really? >> i adored it. i think what brian was referring to in the piece about he's not jon stewart, very different style. that's a good thing because i think the worst thing he could do is try to be the younger south african version of jon stewart because, like you said, comparisons are inevitable. i think by rebooting and starting fresh is the best thing that he could do. >> one thing which he does have, we've all agreed, great timing and great delivery. let's look at one of the gigs he did tonight, bernie sanders. let's have a look.

>> crime is a problem. protect the vulnerable in our world. immigrant family. i'm happy to be a guest in this country which was largely built by families. >> hates inequality and climate change, loves immigrants. he's like a young bernie sanders. >> okay. so, you know, the timing was good. a little political, very current. the problem i have here is that, you know, i think he's toast, no matter how good he is or how talented he is. they're going to want their jon stewart and that cutting, biting edge that comes from someone on the inside and trevor noah is someone from the outside. >> you -- >> do you think they want the med med media?

i think they want his fresh amend he appeals. even in his closing of the monologue he's saying, thank you to everyone watching on television, on your mobile phone. it's natural, too, that he is a -- he's a millennial. >> he's a millennial. john and i have this disagreement that he's -- >> just one. >> just one of many. he is just another comedian. >> too many comedy shows. >> that multi-view he brings is very important and i think millennials more than anyone get that connectivity. >> would you care to comment? >> i think that late night with all of the criticism for lack of females, what better way to evolve late night than with an outsider, intelligent outsider. i am not writing his death certificate any time soon. >> what about the grit? the grit element that jon stewart brought to it? >> jon stewart is a 1 in a million.

but here's the thing, i think that trevor noah is -- notice how he delivers jokes but always has that permanent grin on. he can say the most offensive stuff and you're not anded. >> i love it. >> the last two weeks. >> well, that was because, you know, the whole twitter, obviously. but i think it was smart. i love the teasers. you saw like the way they rolled? >> yes. >> i can't say enough good things. i love "daily stewart with jon stewart" but i'm going to love trevor noah. >> shat you. >> two against one. >> two against one. when we come back we'll try to decode code donald trump's new tax plan. more americans could pay no taxes at all if he is elected president. all this as his rival ben carson gains ground in the latest polls. plus, a potential break through in the search for life on mars. we'll have details on nasa's

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welcome back, everybody. you're watching "cnn newsroom" live from los angeles. i'm john vause. >> i'm isha sesay. vladimir putin said only the syrian people should decide the fate. not the russia or the u.s. they met on monday. mr. obama says the syrian leader is fanning the flames of war in his country and must go. cuban president raul castro is set to meet with u.s. president barack obama on tuesday. on monday the cuban leader

addressed the u.n. general assembly. he praised the warming relations between cuba and the u.s. and called for a lifting of the economic embargo on his country. chinese president xi jinping says the international community should work together for a green, low carbon, sustainable environment. he says china will share in that responsibility. in taiwan, trying to recover from the second typhoon since august. it made landfall on monday dumping nearly two feet of rain in parts of the island. concerns about flooding as well as land slides. two people are reported dead. more than 300 have been hurt. the storm has weakened a little and just made landfall on mainland china. turning now to the u.s. presidential race. donald trump has been losing ground to republican rival ben carson in recent polls. but he still found a way to keep his campaign at the forefront. he did that monday by unveiling his highly anticipated tax plan.

>> trump says he will slash taxes for the poor and the wealthy by closing corporate loopholes me told cnn's erin burnett his own wallet will take a bit of a hit. >> will you pay more money? will it be millions and millions, hundreds of millions, how much more will you pay? >> i will probably end up paying more money but at the same time i think the economy will do better so i'll make it up that way. but i will probably end up paying more money. i believe in the end i might do better because i really believe the economy is going to do beautiful. >> betting on both. >> senior political analyst ron brownstein is joining us now. so great to have you here. >> okay. >> nice to be here. >> i guess the one thing we learned today, donald trump really is a conventional candidate. >> yes. conventional tax plan. ripped off off the details from jeb bush. made a little classier, a little bigger, a little better. >> it is less distisktive and different. in many ways donald trump hash

developing a blue collar populism that does challenge traditional tenets of the republican, specifically on free trade. but here very much reverted to orthodoxy. down to 25%. and the estate tax imposed on people after they pass. reduce corporate taxes, reduce taxes for business owners. and in many ways, as you say, kind of a conventional supply side argument. he talks about reducing deductions to make it revenue neutr neutral. the initial analysises is there are not enough to take back to offset it. >> so to that point, to jump in on what john just said, how does this grow the economy to levels that haven't been seen in years which is what he is lauding with this plan. >> the reality is if you look at the last several decades in the u.s. it is hard to draw a straight line between tax policy and job growth. under ronald reagan, added 14, 15 million jobs.

in george w. bush, cut taxes again and weakest job growth of any two-term president in the 20th century. 1 million net, obama raised taxes, jobs grew again. there is not a clear correlation in our experience between the level of marginal tax rates and the explosion of economy on sdwrobs. it's hard to argue that this alone would radically change the trajectory that we're seeing. >> it will be hitting twitter and we had norquist who is the conservative who wants everyone to sign this commitment not to raise taxes. he wrote, donald trump's tax reform plan released monday a.m. perfectly consistent with the taxpayer protection pledge. so the republicans can like it. this we have a democratic response. this came from a former adviser to u.s. president barack obama. this is austan goolsbee. reading trump tax plan. carry on. and this does get to the point

now that trump, in doing this, releasing this tax plan in some ways is committing himself more to republican party policy and orthodoxy than that phony pledge which he signed a couple months ago. >> i think that's right. this is a much more conventional republican tax plan than we expected. you know, in many ways as i said, donald trump has articulated a 21st century version of the blue collar populism we heard from ross perot, pat buchanan, santorum. hedge fund managers are getting a break, this is pretty good for hedge fund manager overs all and much more conventional. >> it's for the parties, for the elite. is this to endear himself? >> it's hard to know. because it's so different than what he talked about, as you know, in the past when he talked about a wealth tax, one-time wealth tax to help close to testify is it. donald trump has been exploiting the evolution of the republican

party. most people think of the republicans as the party with the corner office. over the also 30, 40 years, as the white working class has realigned the nature has changed. much more blue collar than it used to be. even though this tax plan is aimed more at the latter. >> the new poll which has him neck and neck with ben carson what does this plan do for him? give him the extra lift that he needs to sell himself apart? it's a conventional tax plan. >> i think donald trump's problem at the moment is that for the party basically as i said is essentially 50/50 between a blue collar wing more pop list, more culturally conservative, than white collar who is not looking for someone to break down the government. for those voters, deep questions about trump's temperament, electability, whether he is someone plausible as a president when calling his opponents a clown, for example. i don't know if policy can solve that problem. >> the opinion polls which came

out, trump still in the lead. carson is close. interesting, jeb bush, 21%, 14% now. 7%. crunch time for him oreg gone? >> there will be a finalist in this race from the stir right bracket. it will probably be jeb bush, john kasich, or marco rubio. >> give you $100 million for jeb bush is worried now. >> he hasn't spent $100 million yet. >> if you ponied up the money. >> that's right. >> great to have you, ron. looking forward to many more evenings of congress. thank you. well, a stunning battle between the taliban and afghan fors puts a key pro i understve capital in the hands of insurgents. a teenage girl became the face of hope after she and her family escaped from isis. ♪ the way i see it,

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welcome back, everybody. houthi controlled news agency says 131 people were killed at a wedding in yemen on monday. >> the group says the air strikes were in the southwestern part of the country. saudi arabia leading to coalition denies the reports saying it doesn't have any operations in the area. in afghanistan, taliban fighters seized control of a key city in a stunning assault on the country's security fors. interior ministry says the capital of kunduz. four civilians were killed in the attack. >> police say insurgents freed 500 inmates letting them out of jail to run the city. ma if militants maintain control it will be one of the most serious losses in the war with the taliban. a year ago we brought you a heartbreaking image of a teenage girl crying as the iraqi military rescued her and her

family from mt. sinjai. >> fleeing isis but two of the young girl's brothers were not so lucky. eye van watson just caught up with the teen and filed this report. >> reporter: it was a rescue from hell in the mad dash to climb onboard a flight to safety, families scrambled to stay together. these desperate people spent nine days trapped on a barren mountain under siege from isis militants who chased them from their home. amid the chaos and gunfire, terror frozen on the face of a girl in purple, 14-year-old aziza ham mad. more than a year later we found her and her family in this refugee camp in iraqi kurdistan. i'm looking forward to this. we're going to meet some old friends we encountered in very dramatic circumstances more than a year ago.

and they're right up here. how are you? she and her older 18-year-old sister are here. along with their elder brother, his wife, and his three children. their situation now much better than the unfinished construction site where they lived for the first seven months after isis made them flee their homes. got them. the girls tell me they go to school here and they say the camp has started to feel like home. >> you've gotten taller since i saw you last time? >> reporter: but it does not take long for terrible memories to resurface. >> what is making your sad right now? >> translator: when i see you, i remember what happened.

>> translator: we saw isis with our own eyes, how they were capturing people. if we drove down the wrong road that day we would have ended up in isis hands. but we took a different road and made it to the mountain. >> in the year since their narrow escape their father's health deteriorated an he can no longer walk. no one knows what happened to two elder brothers who were captured by isis last year and haven't been heard from since. and another brother, 23-year-old karum, smuggled himself to europe on the migrant trail taken by so many other people fleeing the middle east. >> hey, karum. >> hello. >> how are you? where are you? >> germany. >> yeah. >> reporter: i asked karum if he misses iraq. >> translator: iraq's gone. iraq is gone for me. i lost it. i want to build a new future for myself.

there's no future in iraq. >> reporter: that homelessness shared by so many people we talked to in refugee camps in northern iraq. where people like aziza and dunya's older brother still deal with the trauma they endured. i just want to start a new life, he says. and i want my family to stay safe and to stay together. one of the few times 15-year-old aziza really smiles is when i ask her what shed like to do to the men from isis who attacked her family. i would stomp on their heads and kill them, she says. this girl may have escaped to live another day, but her innocence has been forever lost. ivan watson, cnn, kurdistan. take a short break. when we come back, nasa's big

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welcome back, everyone. potential breakthrough in the search for life beyond earth. nasa scientists confirmed water exists on mars and still flows from time to time. researchers analyzed dark streaks on mast' surface which grew during the summer and vanished during the wenter. >> discovery does not prove there's actually life on mars but it shows the conditions are more livable than once thought. scientists are working to find out where the water comes from. for more on the findings richard joins us now. he's a project scientist for the mars reconnaissance orbiter. just explain to us, we know that there is water there frozen in

the polar caps. >> yes. >> why is it so important this stuff is in a liquid form? what's the big deal here? >> liquid, that's more mobile. if we're thinking about where life might want to get a foothold liquid water a good place for it. liquid changes things on the surface of the planet. thots hu we found this, by looking at the streaks as a darkens the surface. and then fades away only to reappear the next year. so liquid is what we've been looking for. yes, we knew there was ice. we knew there was vapor in the atmosphere. now there's water, that's a liquid. and moving on the surface. not very much maybe but it's there. now, to stay liquid on mars, very cold temperatures and such, you need to put something in the water. can't just be pure water. so we found the salts. and that's what the news was today. is not only did we suspect that there was water there, but we have seen the result, the kind of salt that can keep italy quid, and also that salt was lie

hi drat hydrated. it absorbed the water that was there. >> let me ask you the question that everyone has, and the question that rose to the top with this conclusion being announced. what does it mean for the question of life beyond earth and what kind of life might exist on mars in these conditions? >> that is a very good question. so what this really does is tells us there are someplace on mars to go look for evidence of current life on the planet. now, salty water isn't necessarily good for life, microbes, bugs, and such. but if life developed on mars it probably did so in its early history. billions of years ago when we know the planet had much more water flowing across the surface. we see the big channels it carved at that time. now, where did that water go? some says it's been lost this space, we have a spacecraft that's looking a that process right now around mars. nd some of it was frozen into the surface. and maybe conditions today are

still at the edge of being able to make that water liquid and to be able to flow on the planet. >> what happens next? where do you take this to the next step in what's next? >> we would like to confirm that what we see and interpret is really what it is. we've been surprised before by mars where we look at something, looks like something, ah, i know what it is, by analogy of what we see on earth and yet it can turn out to be something different. it's a different planet. the first thing is to try to confirm that there is a flow of water there. one way to do that is the look at how it changes during the day. right now our orbiter hops to come over at 3:00 every day, mid afternoon, and that's when the humidity is low on mars. and so what we would like to do is to see it in the early morning when it could be wet enough we might see the water itself. so look forward to the next orbiter. we're also looking for where else on the planet we might see these things. just how extensive might this

liquid water be. and part of that is, you have to look at very high resolution to even see these features. that required our latest orbiter, the mars reconnaissance orbiter at mars. that's when we covered % of the planet at that resolution. there's a lot of territory out here to look for. >> it's super exciting. so let me ask you this and, just briefly, if you will, how much is this rearrange the priorities of the scientific community? >> it really is taking us along a path we started on. we had seen the features. we thought, you know, that looks like it might be the flow or moistening of the soil by liquid water. but where's the evidence? where's the salt that would leave it behind? the salt that was needed to keep italy quid. we hadn't seen that but finally begot enou we got enough of a footprint to say there it is. >> congratulations. >> so exciting. >> this just blows the entire premise of that matt damon move

by back out of the water. >> maybe back in the water. >> appreciate it. thank you for watching "cnn newsroom" from los angeles. i'm isha se sls ssay. >> i'm john vause. when you're not confident your company's data is secure, the possibility of a breach can quickly become the only thing you think about. that's where at&t can help. at at&t we monitor our network traffic

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this is "cnn newsroom" live from los angeles. >> barack obama and vladimir putin try to look cordial for the cameras but there was no hiding the stiff tension between the two leaders. monday at the united nations. donald trump promises to slash taxes for rich and for poor but let's follow his lead not polls. >> noah, replacing jon stewart as host of "the daily show." >> hello. welcome our viewers in the united states and all around the world. i'm john vause. >> i'm isha sesay. "newsroom" l.a. starts right now.

i'm u.s. president barack obama is making an impassioned plea for an end to the war in syria. he spoke monday to the united nations general assembly making clear he's now open to negotiations with anyone to stop the fighting. >> but he is still insisting syria's dictator bashir al-assad must go and that has him at odds with russia. >> the united states is prepared to work with any nation, including russia and iran to resolve the conflict. but we must recognize that there cannot be, after so much bloodshed, so much carnage, a return to the prewar status quo. >> president barack obama and putin met for about 90 minutes to discuss syria and ukraine. mr. putin says only the syrian people should decide president assad's fate, not the u.s. or france. on ukraine, president obama reiterated u.s. support for the country's sovereignty and called

on russia to implement the peace accord over next few months. let's get more on the unga now, rick robertson will join us from london. >> but first, matthew chance standing by live this hour in moscow. away from the public match at the u.n. between putin and obama, now seem to be the prospect the two leaders could work to the for a political solution in syria. >> yeah, and i think if you cut through the frostiness of the relationship between president obama and president putin of russia, clearly there is an inevitability about the fact that they will have to work with each other in syria. already, russia boosted the military footprint in syria. it's got most advanced warplanes there, high-tech military equipment that it's using to back up not just its own diplomacy but also the government of bashir al-assad. and that presents the united

states with a fate, russia essentially has -- russia essentially has boots on the ground. and its intention is clearly to back up president assad of syria. take a listen to what vladimir putin had to say in his speech at the u.n. general assembly yesterday. >> translator: we think it is an enormous mistake to refuse to cooperate with the syrian government and its armed forces while fighting terrorism face to face. we should finally acknowledge that no one but president assad'sle armed forces and militia are truly fighting the islamic state. >> so president putin casting this very much as a fight against international terrorism, calling on other countries like the united states to join with russia in fighting that threat. but of course the suspicion is that this is more about bolstering russia's

international clout and keeping its toe hold, foothold in the middle east. john? >> okay, matthew chance live out in moscow. let's bring in nic robertson now. was ahear matthew talking about syria taking center stage president obama will be chairing a terror summit similarly to last year at the u.n. he will be doing that on tuesday. many asking why he's doing that again given the fact that last year's summit didn't achieve very much. >> well, the aim was to sort of get everyone at the u.n. to agree to do what they could to stop foreign nationals traveling from their countries to get to syria, to join isis, to get to iraq, to join isis. and there was an agreement. and there was sort of political capital on the parter of the united states invested to do that. the reality on the ground turned out to be something different. people continue to flow towards isis, whether it's in libya,

whether they're gaining a stronger foothold over the past year, or whether it's in syria and iraq, where they continue to be on a territory and grow territory despite the air strikes that are targeting some of their training camp, targeting some of their other facilities. the flow of people are still happening. 1078 a disenfranchised. some are leaving. they are giving negative impressions of isis in totality. but what president obama is going to need to try to achieve now is what they've haven't been able to do over the past year whpen you listen to what the iranian leader had to say, they're firmly behind president bashir al-assad. this puts them in a very different position to the united states, western coalition tackling isis inside syria. the idea of getting stability inside syria at the moment which is a big draw for isis, that

doesn't seem to be something that, while going into the unga, hope that there was common ground. i think we've heard from leadering now and that common ground doesn't exist. so a conference now on terrorism comes into this on a weak footing. isha? >> indeed, very interesting indeed. nic robertson joining us there from london. matthew chance in moscow. thanks to you both. world leaders are speaking on monday, that's what they do there. iran's president criticized saudi arabia's handling of the recent stamping near mecca which left hundreds of people dead. >> castro, demanded a lifting of economic sanctions imposed by the u.s. >> zimbabwe's 91-year-old leader lashed out at countries which are pushing for civil rights for gay people. he said gay rights are gins a his country's values.

now, u.s. republican candidate donald trump has release vealed a tax plan that promises economic growths quell as tax cuts for many americans. >> billionaire businessman says this is his thing, it's in his wheelhouse, it's what he does. this is his expertise but does all of this measure up against his rival's plan? >> these numbers are really spectacular. >> reporter: tonight donald trump delivering more policy proposals. unveiling a plan that slashes taxers for the wealthy. this still looks like a big tax cut. >> this is a tax reduction. big tax reduction. includesing for the upper income. >> reporter: under trump's plan, individuals earning less than $25,000 and married couples earning less than $50,000 would pay nothing. but trump also gives the wealthiest americans like himself a huge tax break, cutting the rate from nearly 40% to just 25%.

the billionaire real estate mogul refusing to keep his tax rate but he strives to keep it down. >> i fight like hell to keep it as low as possible. can i say that? i might like hell always because it's an expense. >> trump's plan most closely resembles bush. bush also calls for sweeping cuts at a top rate of 28%. marco rubio's plan brings it to 35% and offers broader tax credits for the nation's poorest americans if i win, if i become president, we will be able to cut so much money. >> others say this is an attempt to strike a populous tone. cbs is saying that trump is advocating for universal health care even as he asks to repeal obamacare. >> everybody is going to be

taken care of, much better than taken care of now. >> reporter: how trump shows how he will look under his leadership, ben carson is climbing the polls. carson's surge comes as he continues to face questions about his comments last week that a muslim shouldn't be president. >> so you are saying there is something specific about being a muslim you have to respect islam in order to be a president? >> you have to reject the tenets of islam. yes, you have to. >> reporter: sarah marie, cnn, new york. >> senior political analyst ron is here now. so great to have you here. >> thank you. >> yes. >> one thing we learned today, donald trump is a conventional candidate. he's pretty much ripped off all the details from jeb bush. made a little classier, bigger, better. >> it is less distinctive and

different and people expect it. in many ways donald trump has developed a knew collar populism that challenges it last several years. here he we versed very much to orth do,,y. lowest top marginal tax rate andes the cape tax imposed on people after they pass, reduce corporate taxes, repus taxes for business owners. in many ways as you say, kind of a conventional supply side argument. he talks about reducing redestructions. initial analyses says there are not enough to take back. >> so to that point, to jump in on what john just said, how will this raise the oh we. >> the reality, is it is hard to draw a straight line between tax

policy. we had 14, 15 million jobs. under bill clinton we raised taxes in '93 and added more jobs. under george w. bush, cut taxes again and we had the weakest job growth of any two-term president. only one million net. there is not a clear correlation in our experience between the level of marginal tax rates and the economy on jobs. it's hard to argue that this alone would radically change the trajectory we're seeing. >> i want to look at the reax we've had here. twit irand norquist, the conservative who wants everyone today to see this commitment not to raise taxes. he wrote, donald trump's tax release plan perfectly consistent with the tax player protection pledge. in we also have the dem ek responses that came from a former adviser to u.s. president barack obama. this is austan goolsbee.

and this does get to the point now that in dof this, releasing this text plan, in 1078 ways it's committing himself more to republican party policy and orthodoxy than phony pledge. >> i think that's right. this is a much more conventional republican tax plan than we expected. you know in many ways as i said donald trump has articulated a 21st century version of the blue collar populism, from rick santorum, pat buchanan. after talking about, for example, that huge fund managers are getting a break. this is pretty good for hedge fund managers overall. >> and get lost in the rhetoric. he makes it seem as if this is all about the poor and suffering. >> broad brush stokes. he's good at talking up something, which is what he's doing right now. in the race for speaker of the u.s. house of representatives house majority leader kevin mccarthy says he

will change the number of washington. they announced on monday that he wants to be his party's chief spoke man and leader he can do what john boehner do, control the conservatives. >> he has come under fire within the republican party over his criticism of the man to defund planned parenthood. another story, stocks are trading down across a -- after big sell-off on wast. the dow jones still average closed down more than 300 points on monday. a little less than 2%. let's look at the numbers right now. we see the nikkei down almost 4% in tokyo. shank my composite down 2%. in honk stong, opened way down and stayed down and insoars, down by ant a quarter of 1%. this will have an impact we believe on the european stopped creating day which is set to

open in just a few hours from now. well, just ahead on "newsroom" l.a., the deadly typhoon makes land foop in china after the major damage in taiwan. stepping into pretty big shoes. trevor noah makes his debut on the daily show. ♪ it's the final countdown! ♪ ♪ the final countdown! if you're the band europe, you love a final countdown. it's what you do. if you want to save fifteen percent or more on car insurance, you switch to geico. it's what you do. who knows, one of these kids just might be the one. to clean the oceans,

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introducing the samsung galaxy s6 edge+ and the note5. since jon stewart announced he would be leaving "the daily show" in august and now trevor noah has taken over as host. >> it returned with the 31-year-old comedian at the helm. brian watched the premier and said noah was quick to establish his own style. >> hey, i guess the big question is was trevor noah funny? yes. he's a very different host from jon stewart. "daily show" is an american tv institution. valued all around the world for its satirical look at the news. trevor noah's version is going to be quite different. he was funny in his premier but he took a moment to be serious and thank jon stewart for the

opportunity. here's one of the best moments from the premier. >> the truth is now i'm in the chair and i can only assume that this is a strange for you as it is for me. jon stewart was more than just a late night host. he was often our voice, refuge. in many way ours political dad. it's weird because dad has left. and now it feels like the family has a nuew stepdad and he's black. >> it's going to take weeks, months, and maybe years to fully see and judge trevor noah's version of the show. think about all the irchs thes he represents. jon stewart is in his 50s. he was shepherding this show for over a decade. actually more than 15 years. trevor noah, on the other hand, is 31 years old. he brings multiculturalism to the show. he's on outsider, native of south africa who brings a

millennial perspective to "the daily show." it won't be as much media criticism as it was in recent years. jon stewart loved to make fun of cnn and fox news. when i asked trevor if he's going to be focusing as much on cable news as punch lines he said he will probably just as much at buzz feed or vox for fodder for comedy. he's not a political junkie but he's an information junkie. eager to make barbs or make jokes about entertainment and sports as well as campaign news. he'll have more musical performances on the show. he has ryan adams later this week. and also tried to incorporate more of the concerns that we didn't see as often when jon stewart was leading the show in recent years. he will continue to focus on politics. he has chris christie as his first guest on wednesday as new jersey governor and republican candidate. that will be a chance to see what trevor noah is like sitting down with a big high-profile politician. like i said, it's going to take weeks, months, even years to

fully evaluate trevor noah. stewart was truly irreplaceable. it makes sense for noah to clee eight his own, brand new version of "the daily show qu." >> trevor noah grew up as a racially mixed child from south africa. david, i know you've been digging into trevor's rise to the top. and managed to gain some unique perspective. >> that's right, it has been a meteoric rise. with trevor noah he has anchored himself in the south african market and gone from there but he came from very humble beginnings. ♪ >> reporter: perhaps the relaunch of the year into the hot seat of "the daily show,"

south african comedian trevor noah. the 31-year-old is an almost unknown in america. >> you can see here he looks like a naughty boy. >> reporter: but not so here where his grandmother lives in the house where he raised noah as a child. >> where he is, there must be love, no tears. >> reporter: he was always her favorite. >> was he always making jokes? >> always loving, always loving. >> reporter: she says it was tough for him sleeping on the couch with his cousins smep had to hide him from the authorities. >> i was born a crime. >> reporter: born to a white father and black mother, illegal during apartheid. noah likes to say he was born a crime. some people are asking how a young xheed i don't know from here could appeal to an american market. trevor noah succeeded here in south africa, a deeply divided nation. >> trevor was possibly still for

me the hardest working comedian person i know. >> reporter: friends and competitors alike say noah is a role model here. they say he grew from a vanilla comedian to an edgy crossover hit. >> people trust him now and willing to hear what he has to say. that's hard, gaining the trust immediately. >> welcome to "the daily show." >> reporter: something noah will have to do all over again if he wants to conquer the biggest of stages. >> of course the show aired early here in the morning. going in their droves the social media, youtube and other sites. probably how trevor noah himself will try to assess themselves. generally their assessment right now is he did it spectacular fail his first night. for that it's here a whim in . t

>> joining us there from johannesburg, thank you. of lo of the people sharing their views. what do you think? >> a lot of good reaction on twitter. a lot of people think he did a very smooth transition. jon stewart, this is a man who "the new york times" just a couple years ago said he was the most trusted man in the united states. this is an impossible job to fill. in some ways they would have almost been better off ending the show with stuart and starting a new show with trevor noah because this is such a suicide mission. >> i disagree. >> to take this job on. look, obviously very good at what he does, smart, clever, he's very good with his timing. he dlifs a great joke. i think -- i just don't think it's going to work. >> he is so radically different from stuart. >> that's the problem. >> it's the only way they could have made the break from the student era to bring such a unique perspective. >> yes. the show is no longer the show that everybody loves.

>> that's supposing they are keeping the same and not grow that audience. >> start it up with trevor or whatever and call it something completely different. i think "the daily show" for liberals and progressives in this country is what fox news is to many ways going to be the republicans. i think the satire and take down of fox news and republicans and cnn at times. >> you know you can't do that. but he would be coming at it from a different position, perspective. >> we'll see. >> ye of little faith. >> okay. >> very little faith. i think he's going to be a success. i really, really do. i know you don't. >> no. i'm not saying that. take a short break. next on cnn, a storm chaser in taiwan at what's happening right now after typhoon ripped across the island. new hope for a possibility of life on mars. we'll have details of the latest

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welcome back, everybody. thanks for staying with us. you're watching "cnn newsroom" live from los angeles. i'm john vause. >> i'm isha sesay. the headlines for this hour. the u.s. and russia have a serious disagreement between putin and obama. they met monday at the united nations. mr. obama says the syrian leader is fanning the flames of war in his country and must go. donald trump has finally shared his long awaited tax

plan. he promises drastic cuts for income taxes for the poor and wealthy. mr. trump plans to pay for the cuts by eliminating deductionsnd loopholes used by the very rich, officials say at least two people are dead and more than 300 injured after typhoon dujuan hit taiwan on monday. tu juan dumped half a meter or two feet in rain in parts of the country. more than half a million people are without power. the heavy rain are expected to cause flooding and landslides. last hour we learned the storm has weakened some and made landfall on mainland china. a storm chaser was there when the deadly typhoon hit. james, how powerful was this storm as it passed over taiwan? >> this was an incredibly powerful typhoon. taiwan is used to typhoons and gets hit by them basically every year but this was a lot usual

than the usual typhoons they get. you can see by the number of casualties being reported, the majority of these were from the strong winds. i could see myself yesterday, lots of flying debris making it an extremely hazardous situation. thankfully now it's radically improved. >> things do seem to be getting better in taiwan. china is a different story but the storm is weakening a little. as you look around you, how extenseive is the damage there? is there a sense there that maybe this could have been a whole lot worse? >> well, the basic infrastructure of taiwan is incredibly solid. built for not only typhoons but earthquakes as well. the main structures, main houses and government buildings are all basically fine. the damage is superficial. however, i did see plenty of traffic lights ripped out of the

ground and small shacks basically ripped apart by the wind as the typhoon jumped. >> james reynolds with the latest on the storm and the damage it did to taiwan. >> let's bring in meteorologist pedram watching the typhoon and the incredible rain it has brought. >> just to give you an idea of what the storm sid from sunset monday night and sun rooiz tuesday morning. it brought rainfall down in london in an entire year in that period. in los angeles it would take two years, the average thabt 12 1/2 inches, picked up 28 inches across taiwan approximately 600 millimeters. we know there's a drought in place, five years of recent rainfall to accumulate a what occurred around northern tie what want in the past 24 hours. let's bring the mountains in here. taiwan, fun fact is home to some

of the highest density of tall mountains. as the mountains come up, 300 mountains rising to roughly 3,000 meters. act 10,000 feet in height. this would be a graveyard for a tropical feature. this storm comes in as a category 4 as it didded a land fall. dpited the central mountain range of taiwan as a category one as the storm literally shreds it apart. as you post the clouds in the mountains, rise, cools, condenses. squeeze out the historic amount of rainfall we saw across parts of town. i want to bring in quadrants into the picture. oftentimes in the northern hemisphere you look at the right front quadrant because the storm as it rotates counter clock wise, that area is increased and the wind speed picking that corner to be where the strongest winds are found. eye left-hand east of tie wand, yonaguni island, 181 miles per hour. strongest wind gust they seen in

japan since 1966 and that happened at the summit of mt. fuji. that 181 miles per hour, equivalent to the speed of a commercial airline taking off at your airport. this is what we're seeing with the storm system. at this hour, category 1 equivalent storm system as it pushes in. made landfall 11:00 elowe call time around eastern portions of china. 140 kilometer winds sitting 80 or so miles per hour. the population around this region. 8 million people. the storm system will bring in additional rainfall on the order of ten inches. now we're talking about 200 to 300 more millimeters. the wind speed will die down as it continues. fountain nous terrain over the next 12 or 24 hours. they're used to it but with the population sense difficult, that would be upwards of 300 millimet millimeters. talking six inches.

that is going to be a problem across that region and population density still high. 400 to 800 people as it moves over the interior portion of chip that inside the next 24 hours. the concern remains very high for additional flooding, additional landslides because of the mountainous terrain ahead of it. >> thank you for the update. we have new images to share with even. it just made landfall and crossing over the coast into china. this is the damage in the town of quanghou. >> strong winds whipping up the waves. we do know that the pow were of the storm though much less than what it was when it hit taiwan just a little earlier. killing at least two people and causing some damage, superficial damage, according to james reynolds, our storm chaser.

this is the situation just a few hours a i go there in quanzhou city in china. >> you see from 24these picture the velocity of the winds. it has lessened. in the meantime, move on to yemen where houthi controlled news agency says saudi air strikes killed at least 131 people at a wedding. many people were hurt. >> the houthis say the air strikes were in the southwestern part of the country. saudi arabia says it doesn't have any pragszs in the area. >> taliban fighters in afghanistan may have captured the key city on monday. the lird issued a statement congratulating fighters and telling them to keep the residents safe. >> they plan to retake them as soon as possible. michael holmes has more. >> reporter: afghan security forces stretched to the limit as the taliban seized control of

most if not all of the town storming them from three sides at down. nato trained afghan police and army say they're doing what they can to thwart the attack, both sides they say taking casualties. >> translator: all of our afghan forces are fighting the enemies. until the last drop of our blood, we will defend this territory and be confident they are not able to do anything. >> reporter: the insurgents claim to have taken over several government building, hospital, and jail where they freed hundreds of prisoners. though some government officials denied this, it's one of the most serious losses in the nearly 14 year war with the taliban. the losses in kunduz reflecting poorly and embarrassing the afghan president. the cellphone video posted to social media shows one taliban fighter explaining what he wants. >> translator: god willing.

this is our hope. to build a religious school, to build a bridge, a road, a sharia based government. this is why we calm oitd and this is what we fought for, so that sharia law is enforced here. >> the city of kunduz in kunduz is the fifth largest city. the taliban have been taking advantage of that. they have surrounded the city for months and attacked it back in april. one local official says the taliban now controls 70% of the province. michael holmes, cnn. m. short break here on "cnn newsroom." when welcome back, a reunion with a teenage girl who made a dramatic escape from isis. i'm sorta marge... you're not marge? we both drive a stick,

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a teenage girl became the face of hope. a little more than a year ago when she was rescued by the iraqi military from mount zrksz injar. >> they're living in a refugee cap in iraqi, kurdistan. ivan watson caught up with them and has their story. >> reporter: it was a rescue from hell. in the mad dash to climb onboard a flight to safety, families scrambled to stay together. these desperate people spent nine days trapped on a barren mountain under siege from isis militants who chased them from their homes. amid the chaos and gunfire terror frozen on the face of a girl in purple, 14-year-old aziza hamid. more than a year later we found aziza and her family in this

refugee camp in kurdistan. >> i'm looking forward to this. we're going to meet some old friends that we encountered in very dramatic circumstances more than a year ago. and they're right up here. dunya, how are you? si zi sa and her 18-year-old sister dunya are here along with her older brother, wife, and three children. their situation now much better than the unfinished construction site where they lived for the first seven months after isis made them flee their homes. got them. the girls tell me they go to school here, and they say the camp has started to feel like home. aziza, you've gotten a little taller than dunya i understasin you. but it does not take long for terrible memories to resurfaced. what's making you sad right now?

when i see you, aziza says, i remember what happened. we saw isis with our own eyes. how they were capturing people. if we drove down the wrong road that day we would have ended up in isis hands. but we took a different road and made it to the mountain. >> reporter: in the year since their narrow escape their father's health as deteriorated and he can no longer walk. no one knows what happened to two elder brothers who were captured by isis last year and haven't been heard from since. and another brother 23-year-old kareem smuggled himself to europe on the migrant trail taken by so many other people fleeing the middle east. hey, kareem. >> hello. >> hey, how are you? where are you? >> yeah. >> germany? >> yeah. >> reporter: i asked kareem if he misses iraq.

>> translator: no, that's gone. iraq is gone for me. i lost it. i want to build a new future for myself. there's no future in iraq. >> reporter: that hopelessness shared by so many people we talk to in refugee camps in northern iraq where people like aziza and du dunya's older brother still deal with the trauma they endured. i just want to start a new life, he says, and i want my family to stay safe and to stay together. one of the few times 15-year-old aziza really smiles is when i ask her what shed like to do to the men from isis who attacked her family. i would stoch mp on their headsd kill them, she says. this girl may have escaped to live another day but he innocence has been forever lost. ivan watson, cnn, iraqi,

kurdistan. >> a story of suffering endured by so many. >> hundreds of thousands of families who have very similar situation to them. lost everything. had to leave their homes. been through trauma like they have. nasa confirms water on mars. up next, what the discovery means for the possibility of life on the red planet. bill's got a very tough 13lie here...... looks like we have some sort of sea monster in the water hazard here. i believe that's a "kraken", bruce. it looks like he's going to go with a nine iron. that may not be enough club... well he's definitely going to lose a stroke on this hole. if you're a golf commentator, you whisper. it's what you do. if you want to save fifteen percent or more on car insurance, you switch to geico. it's what you do. this golf course is electric...

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excellent, i'll be squeezing my in no time. >> hello, gents. what can i do you for? >> in and out in 18 seconds. >> okay. it has been one of tv's biggest secrets for years, the simpson's character waylon smithers is gay and he will officially come out this season. >> the show has dropped endless hints about smither's sexuality but his boss still doesn't know.

he will find out though over the two episodes this season. "the simpsons" has been on the air for 26 years. >> he ran into lisa, new edition of malibu stacey. >> you're an avid watcher of "the simpsons." okay. a martian mystery solved. nasa scientists confirm wattest exists on the red planet and it apparently still flows from time to time. researchers analyze dark streaks on mars' surface which grew during the summer and vanished during the wenter. >> scientists are working to find out where the water comes from. the discovery shows the condition on mars are potentially, potentially more livable than once thought. astronauts can one day go there to look for signs of life. >> we are now at a point tech logically with over 50 years of successful spaceflight that we have the capability to go there, ask this question of is there

life on mars and answer it. you know, this is to me the most exciting thing. >> last hour we speak with richard zurich about the findings, project scientist for the mars reconnaissance orbiter. >> we know that there's water there frozen in the polar caps. >> yes. >> so why is it so important that this stuff is in a liquid form? what's the big deal here? >> liquid, that's more mobile. if we're thinking about where life might want to get a foothold, liquid water is a good place for it. also, a liquid is what changes things on the surface of the planet. that's how we found this, by looking at the streaks as it darkens the surface and fades away only to reappear the next year. liquid is what we've been looking for. yes, we knew there was ice and vapor in the atmosphere. now there's water that's a liquid. movening on the surface. not very much maybe but it's there. to stay liquid on mars with this very cold temperatures and such you need to put something in the water. can't just be pure water.

so, we found the salts. and that's what the news was today. not only did we suspect that there was water there but we're seeing the result, the kind of salt that could keep it liquid and also that salt was hydrated. it had to absorb the water that was there. and that's an indication, again, that the water is inside there. >> let me ask you the question that everyone has, and the question that rose to the top with this conclusion being announced. what does it mean for the question of life beyond earth and what kind of life might exist on mars in these conditions? >> that is a very good question. so what this really does is it tells us there are some places on mars to go look for evidence of current life on the planet. now, salty water isn't necessarily good for life microbes, bugs, and such. but if life developed on mars it probably did so in its early history, billions of years ago when we know the planet had much more water flowing across the

surface. we see the big channels that it carved at that time. where did that water go? some, lost in space. we have a spacecraft looking a that process right now around mars. and some of it was frozen into the surface. and maybe conditions today are still at the edge of being i believe to make that water liquid and to be able to flow on the planet. >> what happens next? what's the next step? >> we would like to confirm that what we see and interpret is really what it is. we've been surprised before by mars where we look at something, it looks like something where we got, ah, i know what that is, by analogy of what we see on earth, and yet it can turn out to be something different. it's a different planet. first thing is to confirm that there is a flow of water there. one way to do that is to look at how it changes during the day. right now our orbiter happens to come over 3:00 every day, mid afternoon, that's when the humidity is low on mars. so what we would like to do is

see it in the early morning when it can actually be wet enough. we might see the water itself. so look forward to the next orbiter. we're also looking for where else on the planet we might see these things. just how extensive might this liquid water be. and part of that is you have to look at very high resolution to even see these features. that required our latest orbiter the mars reconnaissance orbiter at mars. it's only covered 3% of the planet at that resolution. there's a lot of territory out here to look for. >> okay. richard zurek speaking to us. a little excitement about all of this and it comes pretty much at a perfect time or maybe not the perfect time because it may have blown the entire premise of the sci-fi film "the martian" completely out of the water. >> you can say it. >> i got to make water and grow food on a planet where nothing grows. >> the movie opens in the next few days around the world and in

the united states on friday. it's about an astronaut matt damon stranded on mars, has to find a way to survive because there's no water there. >> filmmakers worked closely with nasa on the movie. he knew ability nasa's discovery but not in time to change the film. >> no. >> no. >> okay. >> you have been watching "cnn newsroom" live from los angeles. i'm john vause. >> i'm isha sesay. stay with us. the news continues with rosemary the news continues with rosemary church right after this. am totally blind. and sometimes i struggle to sleep at night, and stay awake during the day. this is called non-24. learn more by calling 844-824-2424. or visit your24info.com.

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russia take on their thorniest differences in a rare and tense face to face meeting. >> plus a key afghan city falls. >> and nasa says there's evidence of flowing water on mars making life on the red planet much more possible than we thought. a big welcome to our viewers here in the states and those of you tuned in from around the world. >> thanks for joining us. this is cnn news room. >> u.s. president, barack obama,

will convene a summit at the united nations aimed at fighting isis and countering violent extremism. on monday he met with vladimir putin for 90 minutes to discuss the war in syria and the situation in ukraine. >> mr. obama took aim scarily at the syrian president, calling him a tyrant who has brutalized his on people. mr. putin says only the syrian people can decide their president's fate. not the u.s. or france. >> now the meeting between the presidents is their first in two years. >> and jim acosta has more on what happened before they sat down together. >> reporter: before their meet, president obama and vladimir putin let their body language do the talking, clinking cham pain glatszs. earlier in the day, mr. obama

warned of dangerous currents making his feelings clear about putin's new shadow in the middle east. >> we're told that such retrenchment is required to beat back disorder. >> reporter: he slammed the recipe for beating isis, whose main ingredient is propping up asaad. >> we should support asaad who drops barrel bombs because the alternative is surely lors. >> reporter: with no end in sight, putin is essentially proposing a plan b. instead of supporting the syrian rebels like the u.s., russia wants to back asaad. so it's sharing an intelligence agreement with iraq, iran and syria. >> translator: asaad's forces and kurds militia are fighting in syria. >> reporter: putin blamed the

u.s. for the rise of isis. >> translator: we think it is an enormous mistake to recall -- >> as he explained, he argues the u.s. miscalculated by taking the wrong sides in the arab spring. >> translator: we support the government of syria. >> reporter: barack obama is now softening his stance and adding he'll even work with russia and iran. >> realism dictates that compromise will be required to stamp out isil. >> reporter: the u.s. and russia still aren't collaborating even as moscow ramps up its military in syria. which is why the two leaders are talking face to face since their encounter two years ago. an easier time in their relationship before russia became isolated from the west. something mr. obama wants the world to remember. >> if that happens without consequence in ukraine, it could

happen to any nation gathered here today. >> for more on the meeting between the u.s. and russian presidents let's bring in matthew chance, and he joins us live from moscow. so, matthew, it was certainly frosty between mr. barack obama and mr. putin at the unga, but after their meeting, the russian president described their 90-minute chat, as, quote, very constructive, business like, and surprisingly frank. does this signal the possibility the two leaders could work together in syria on fighting isis? >> well, it would seem to, wouldn't it, and, in fact, i don't see much alternative but for the united states and russia to work together when it comes to fighting isis and to coordinate over their respective military actions in syria. the united states, of course, is leading a coalition of some 60 countries in air strikes against isis, and russia, at the same time, is backing the other horse

in the race, as it were. the government of bashar al assad. it's expanding its military presence and boosting its diplomatic support for asaad. they don't have much option but to coordinate and cooperation with each other. they've done it in the past. they did it over iran. they can do it in theory over syria as well. i think from the kremlin's point of view, vladimir putin was probably quite satisfied with this meeting. he said those words because one of the objectives of vladimir putin going to the u.n. and getting this meeting with obama was to try and underline the fact that russia is an irreplaceable partner for negotiations in international diplomacy, and that aim has been realized. he was front and center of the diplomacy at the unga and he will be at the conversations going forward about the syrian civil yar. >> we saw vladimir putin seize the initiative at the unga on

the issue of syria leaving the u.s. scrambling for a bit. is this the biggest threat to any progress being made, the sense that it's a contest to try to prove who's in charge here? >> reporter: well, there's not a great deal of progress in fairness that's been made in the past four years. i think what vladimir putin is saying, whether you believe him or not, whether you support his position or not is this situation can't continue and russia is going to act, and he's calling on other countries to act. in the end, the relationship between washington and moscow has been a practical one. after a year of isolation, they've unfrozen their military ties. that's important because the two militaries are involved in syria to a lesser or greater extent. they don't want to get involved in an unexpected confrontation with each other. the fact they're talking with each other to make sure they

don't hit each other, i think it's an important and interesting sign that the intention going forward is to cooperate and to coordinate. i'd be very surprised if this turned into a sort of stand off between these two figures of global politics. >> yeah. certainly a very delicate situation, though. matthew chance joining us live from moscow. many thanks. >> many other world leaders took their turn addressing the u.n. general assembly on monday. >> iran's president criticized saudi arabia's handling of the recent stampede near mecca that killed hundreds of people. >> the cuban president praised the relations between his nation and the u.s., but also demanded a lifting of economic sanctions imposed by the u.s. >> the chinese president urged the world community to fight climate change. he pledged that china would shoulder its share of responsibility. >> and this was a bit of a

standout moment, szimbabwe's leader speaking out. he said gay rights are against his country's values. now we have some breaking news just in to cnn as it relates to afghanistan. the ministry of defense there says a counter attack to retake the city from the taliban has begun. >> the northern afghan city fell monday. at least four civilians were killed in that attack. witnesses said some 500 taliban prisoners were freed from the prison, but we just heard the police said the prison has been retaken as well as the police chief's compound. we'll continue to follow that. >> this story still developing. let's bring in nick robertson who joins us live from london with more on this.

nick, the counter attack has begun, but how did afghan security sources lose the city in the first place even after being backed up by afghan air support? >> reporter: it's not straightforward, and it begins many months ago. even many years ago. since april this year, the taliban increased their strength and has been, essentially, had it in their sight since then. entering the city in the very early hours of yesterday morning. now, look, when we stand back and look at this. in the past when the taliban have been able to make significant gains like this, and this is the most significant gain, the biggest town that they've been able to take since 2001. it's significant. this is sort of an affluent province, a lot of trade to the north, the main highway runs through there. this is a significant target and prize for the taliban, but in

the reason that they've been able to make swift gains like this in the past in towns is because part of the population is sympathetic to their message. there is some evidence that seems to support that. the government forces did pull out of the town and fall back to the airport. there are claims that they felt that they lacked good leadership. so these are contributing factors. it's a battle that's been shaping for a while. local population aren't necessarily supporting the government. and the message coming from the new taliban leader as well is one that's so -- it's one that's to the private citizens of kunduz saying we won't target you. just go back to work. they give the impression they're not willing to give up easily, but they will not damage civilian property. right now for a lot of the people who live in kunduz, the question is if there's a fight

to retake the city, who's responsible for the damage. this could affect who they support in the future. retaking the city is going to be as significant as losing it, and how that's handleled in terms of how the taliban are perceived in area going forward. >> the taliban did free more than 500 inmates from a prison. that makes the situation on the ground that much more unsafe. there are reports that those prisoners, telling reporters that they are simply heading home. but how long could it take to recapture this town? >> reporter: well, there was a force of maybe, and we don't have these figures accurately, but an estimate 7,000 police and army there in the town. typically the police live locally. oftentimes the army is brought in from other parts of the country. that makes the police more liable to local pressure in their villages from the taliban.

they live there. and the government says that it's bringing in more reinforcements which it should be able to do. the great thing that nato bought the afghan logistic support as nato has drawn down its forces, the la gist cal support is not there as strongly as before. here we're talking about the ability to rush in large numbers of troops, and fly them into the airport and provide food and water to sustain them. ammunition to sustain them in battle. so right now knewer inically, the taliban should be outnumbered. the key is going to be how much damage the government is prepared to do to push the taliban out. is the taliban prepared to stand ground and contribute to that damage, and, therefore, lower their estimate administratiin t the local people.

this is part of a political campaign on their part as well. so it could be done quite quickly. looking at the numbers. but i think we're really going to have to watch how it plays out. the army by the retreat yesterday, and the police have shown that there are question marks over the government's ability to sort of impose its grit in kunduz, at least in the short term. >> nick live with the breaking news out of afghanistan. officials retaking that city after the biggest taliban gain since 2001. donald trump has unveiled his tax plan. why it would allow some americans to say i win to the irs. >> plus the latest on the typhoon in taiwan. we'll have all the details, next.

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on monday amid fears over china's economy and over the

uncertainty of the u.s. interest rate hike, and at this moment, the selloff seems to be continuing in asia. this is a live look at the markets. markets in tokyo and sydney have closed for the day. as you see there, tokyo's nikkei is down. the s&p asx 200 down as well. the shanghai composite down roughly 2%. >> big losses there. >> yeah. >> all right. back to the united states now. and for months u.s. republican presidential candidate, donald trump, has talked about his plan to make america great again, his words. now he's released a tax plan. >> keep in mind, this comes as ben carson surges in the polls. joe johns has the latest. >> reporter: the economy is what i do well. donald trump back in the

spotlight eninvolving his tax reform proposal. >> we have an amazing code. it will be simple. it will be easy. it will be fair. it's graduated. as you get up in income, you pay a little more. >> reporter: under the plan, individuals making less than $25,000 and couples earning less than $50,000 would pay no income tax and send back a one-page form to the irs saying i win. as for the wealthiest americans, singles earning more than $150,000 and households making more than 300,000 would see their tax rate cut from nearly 45% to 25%. this is a big tax reduction. i believe this economy will do so well that even though they won't be getting certain deductions which weren't fair for them, they'll do better.

>> reporter: jeb bush and marco rubio call for reducing rates for businesses. the billionaire candidate says any lost revenue would be offset by growing the economy and ending tax loopholes for wealthy hedge fund managers but no specifics for judging that claim. >> i believe they'll do better. i think the economy will grow rapidly. and we'll have something very special. >> reporter: the policy rollout comes as carson surges in the polls, running neck and neck with trump. >> i'm going to be who i am. if they like that, that's great. and if they don't, so be it. >> reporter: carson claiming to 20% in the latest wall street journal poll. essentially tied with trump at 21%. also moving up, carly fiorina and marco rubio tied for third at 11% a piece. rubio who has become a fresh target for trump, swinging back.

>> i'm not interested in the back and forth to be part of his freak show. >> rand paul also getting in on the action. >> how could anyone in my party think this clown is fit to be president? >> reporter: carson's prize comes even after his remarks last week about a muslim serving as president. >> i'm assuming that if you accept all the tenets of islam, that you will have a very difficult time abiding under the constitution of the united states. >> this interview is over. >> reporter: even though that interview was cut short, his comments about not wanting a muslim in the white house have not hurt carson in the polls or in the pocketbook. the campaign says he raised about $600,000 after he made it. joe johns, cnn, north carolina. >> donald trump sat down with cnn to talk about his tax plan

and we will show you part of that interview a little later this hour. >> all right. now to other news. a deal that would prevent a shutdown of the u.s. government on wednesday appears to be imminent. the u.s. senate voted to limit debate on the stopgap funding bill. the agreement sets aside on whether to provide funds to planned parenthood. that means the measure to continue funding the government will come up for a vote and likely pass before the wednesday deadline. the stopgap measure is intended to buy times for both political parties to strike a longer term budget deal. >> meanwhile, kevin mccarthy is pledging to change the culture of washington. the california republican announced on monday that he wants to be the next speaker of the u.s. house of representatives. he said he can do what outgoing speaker, boehner couldn't, control the conservatives.

well, officials say at least two people are dead and more than 300 injured after typhoon dujuan hit taiwan on monday. dujuan dumped over half a meter or nearly two feet of rain in parts of the country. more than half a million people are without power and the heavy rain is expected to cause flooding and landslides. dujuan has made land fall on mainland china. the storm has weakened, but chinese officials are not taking any chances. they're preparing for the worst. and the storm has already dumped an incredible amount of rain over taiwan as we mentioned. we want to get an update from our meteorologist. pedram, we want to hear what's happened in taiwan and what's in store for china. >> look at the rainfall here. we know upwards of 700 millimeters c or 28 inches has

come down in northern taiwan. from the time folks went to sleep to the time they went up, the amount of rainfall was more than what london would see in a year. los angeles gets about 12.5 inches of rainfall every single year in a good year. it would take them two years to see what occurred overnight in the past 24 hours in taiwan. it would take five years in recent year rainfall to get up to what a cured in one night in taiwan. the central taiwan mountain range, interesting. we have about 300 mountains that rise up to about 3,000 meters in height. think about this. this becomes a tropical cyclone graveyard. as the storms came, category 4 interacting with the mountains.

the mountain really shreds the storm system apart. once it emerges on the other side, the conditions there downgraded to a category one. i want to break it apart. we know in the northern hemisphere, based on how things rotate there. the area of the strongest wind are expected, just offshore of taiwan, this island had the highest wind gusts ever observed in japan. 292 kilometers per hour. the last time was in the 1960s. it's about the speed that you would have on a commercial airliner as it's taking off at your local airport. here's the storm system sitting in place across portions of china. fell apart rapidly. lots of mountains over this area. it will produce 2 h 00 to 300

millimeters on rainfall. that on top of what's already occurred. a life threatening scenario, especially when you consider the population that sits at about 7 million and the metro population. you're talking about a lot of people in a small area, and a lot of rainfall to go around as well. >> all right. pedram, thanks a lot. we'll see you next hour. >> now paul walker's daughter is suing porsche, claiming defects contributed to her father's death. the car he was riding in lacked adequate side bars. the auto maker says they haven't seen the lawsuit. paul walker and his friend were killed two years ago in a car crash. police determined it was speed that caused that accident. >> a german newspaper reports that volkswagen managers knew

that diesel emissions were being manipulated as soon as 2007. it says it delivered soft wear that showed diesel cars running cleaner during testing than they did in actual driving. volkswagen is accused of using that software in millions of vehicles to cheat on smog tests. the company wouldn't comment on the new report but says the manipulations are not excusable. a potential breakthrough in the search for life on mars. we'll have the details on that. the announcement about flowing water on the red planet just ahead. >> i'm looking forward to this. we're going to meet some old friend we encountered in dramatic circumstances more than a year ago. they're up here. and a special reunion after a desperate rescue from isis. the emotional story, next.

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>> a warm welcome back to our viewers in the states and to those watching around the world. >> we want to update you on the main stories. the afghan government says a counter attack to retake the city of kunduz is happening right now. the capital fell on monday, and we are told the prison, a police compound and a local neighborhood have been secured. he also says a big military operation to clear all kunduz city is about to start.

new video coming in from china as the typhoon has made its way to the mainland. officials from taiwan say at least two people were killed and 300 were injured. more than half a million people are said to be without power, and the heavy rain is expected to cause flooding and landslides. >> saudi led air strikes killed at least 131 people at a wedding on monday. the group says they were in the south western part of the country. saudi arabia says it doesn't have any operations in that area, and denies the report. >> last august, isis launched an assault on a province in iraq, targeting yazidi minorities. more than 5,000 were kidnapped, many of them women.

>> that attack also triggered an exodus has hundreds of thousands fled their homes. ivan watson has been reporting on the plight of the yazidis and caught up with one family he first met during a desperate rescue. >> reporter: it was a rescue from hell. in the mad dash to climb on board a flight to safety j families scrambled to stay together. these people spent nine days trapped in a mountain under siege from isis militants who chased them from their homes. amid the chaos and gunfire, terror on the face of a 14-year-old girl. more than a year later, we found her and her family in this refugee camp in iraqi curdic stan. we're going to meet some old

friends we encountered in dramatic circumstances more than a year ago. and they're right up here. how are you? the girl and her 18-year-old sister are here. along with their elder brother, his wife, and his three children. their situation now, much better than the unfinished construction site where they lived after isis made them flee their homes. the girls tell me they go to school here, and they say the camp has started to feel like home. >> you've gotten a little taller than your sister since i saw you. >> reporter: but it does not take long for terrible memories to resurface. what's making you sad right now? >> translator: when i see you, she says, i remember what happened.

we saw isis with our own eyes, how they were capturing people. if we drove down the wrong road that day, we would have ended up in isis's hand. we took a different road and made it to the mountain. >> reporter: in the year, their father has deteriorated, and he can no longer walk. no one knows what happened to two elder brothers who were captured by isis last year and haven't been heard from since. and another brother, a 23-year-old, smuggled himself to europe on the migrant trail taken by so many other people fleeing the middle east. >> how are you? where are you? germany? >> yeah. >> i asked him if he misses iraq. >> translator: no iraq is gone for me. i lost it. i want to build a new future for

myself. there's no future in iraq. >> reporter: that hopelessness shared by so many people we talked to in refugee camps in northern iraq. where people like this young girl and her brother still struggle to deal with the trauma they endured. >> translator: i just want to start a new life, he says. and i want my family to stay safe and to stay together. >> reporter: one of the few times this have a-year-old really smiles is when i ask her what she'd like to do to the men from isis who attacked her family. i would stomp on their heads and kill them, she says. this girl may have escaped to live another day, but her innocence has been forever lost. ivan watten,son, cnn. >> those young girls have been

through so much. great report 15 years ago, the united nations set out to ensure every child would have an education. >> they just signed off on new goal to ensure it happens in the next 15 years. former australian prime minister is now chairwoman of the global partnership for education. now linda kin kad asked her if the education goal is achievable. >> it is achievable, and we have made a lot of progress. it's the near 2000. the number of kids of primary school not in school has been cut by around 40 %. so that's progress that should be celebrated, absolutely. with these new sustainable development goals, we are lifting ambition as well as looking to complete the task of getting every child into primary school. there are around 124 million

children today of primary and lower secondary amg who aren't in school. >> give us a snapshot of your strategy. >> well, our work is with developing country partners. we work with 60 nations around the world. so it's a very wide geographic spread. we work with developing country governments to make sure that they've got a full plan for schooling. and we make sure that plan is owned by the community, that it's not top down but it's had engagement from teachers and civil society representatives. >> be sure to check out the full interview with the former australian prime minister at cnn.com. >> now, this is a cool story. a martian mystery is solved. streaks on mar's surface vanished in the winter. >> scientists are working to

find out where the water comes from. the discovery does not prove there's life on mars, but it does show the conditions could be more livable than once thought. >> our rovers are finding there's a lot more humidity in the air than we ever imagined. as we ingest the soils, they're moist. they're hydrated, full of water. >> the president of the mars society joins us from boulder, colorado, to talk about this announcement. this is an exciting day, but we've known that water existed on mars for quite some time. we still don't know exactly where it all is or where it all went. in your view, what is the major announcement nasa made? >> well, what's really new here, first of all, they've confirmed earlier incites of this kind. we had one in 2001 and 2011, but

this is confirmed. and what's more to the point, this phenomenon of the saltwater seats are not just in one place or another, but all over the planet. this is a general phenomenon. it means the planet has a water table, and in underground water on earth there is life. there could be on mars as well. >> so it's possible that the reason you're seeing this behavior from season to season is because the water is mixed up in the surface terrain and with the changing temperatures it gets released, but we don't know exactly where the water is coming from. that still needs to be explored? >> sure. but here's the point. the water is coming from underground. that's clear. it doesn't rain on mars. there's very little precipitation. there's an underground water reservoir on mars. we had a good hint a few years ago when there was a photograph of a crater in 2000 and 2005, and inbetween the shots, a water

erosion feature appeared on the side of the crater. in our own time, a water erosion feature happened. and it's now apparent how there would be liquid water on mars. there's salt. just like you throw salt on an icy road, salt water has a lower freezing point than fresh water. you can have salt water, liquid salt water at the temperatures we find on mars. >> this is all fascinating. the mars curiosity detected methane on mars. that allows for the possibility of life. when you combine all the findings, you wonder how could this planet not have supported even small forms of life at some point? >> well, it's clearly capable of supporting life. i mean, the methane, that's created by life or it's from a

hi hydrothermal system. we know it's habitable. the question is is there life there. that puts to the test the theory that life is a normal development from chemistry wherever you have appropriate conditions. if that's true, there's life on mars and on planets all over the over the universe. we know there's planets around most stars. every star has the possibility for liquid water. if we find life on mars, that means we're not alone. >> that's the president of the mars society. thanks so much for your time today. >> thank you. all right. we'll take a short break. still to come, donald trump says his own wallet would take a hit under his proposed tax plan. the holidays bring many challenges to the feet.

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u.s. republican donald trump has released his highly anticipated tax plan. >> here are the details. individuals who make less than $25,000 a year or couples earning less than $50,000 won't pay federal income tax. >> also the highest individual tax bracket, currently about 39% would drop to 25%. he says he'd pay for the deduks by closing loopholes. >> if you look at what's going to happen to the economy. the economy is going to be like a rocket. it's going to go up. this is my wheel house. i think you're going to create tremendous numbers of jobs. part of this, and as we were discussing, i'm also going to bring a lot of jobs back to the

country, because so many countries have taken our base and manufacturing. we're going to couple that with this tax plan, but we're going to have a country that really is going to rocket again. i'm going to put people to work and be great for business. and we're going to have an economy that really is going to be hot. >> you, will you pay more money? will it be hundreds of millions? how much more will you pay? >> i'll probably end up paying more money, but i think the economy will do better so i'll make it up that way. i'll probably pay more money. i believe the economy is going to go boom. beautiful. >> we'll see. and during that interview, trump admitted that his rhetoric on the campaign trail is probably a little childish, his words, and as he puts it, quote, this is a campaign. >> all right. at least he's honest with how he feels. the show is now his. coming up, a closer look at the

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era with trevor noah has the host. the 31-year-old won the top spot after being a contributor for eight months. >> during his premier he discussed other candidates for the job and he thanked jon stewart who had hosted this program for 16 americans. >> they tried to get an american to host. they declined. a job americans rejected is now being done by an immigrant. thank you, jon. thank you for believing in me. i'm not quite sure what you saw in me, but i'll work hard every day to find it, and i'll make you not look like the crazy old dude who left his inheritance to some random kid from africa. >> and he has a great story. his childhood was very challenging. >> that's right.

he was born a mixed race child in south africa. we're joined with more on that part of this story. south africans wake up feeling a bit more prideful, and they can also talk to you about what his mom was like. you spent some time with her. >> reporter: well, his grandmother, actually, and, yes, there was a bit of nervousness overnight in south africa. people asking the question will he succeed? i think there's a collective sigh of relief. a huge amount of pride about him taking this huge stage in america. people in south africa are very aware of the daily show, and jon stewart's reign there, and we went yesterday on the eve of this big day to visit his grandmother. now, trevor noah for the first part of his life lived with his grandmother. he often says in his comedy that

he was born a crime, because he had a white swiss father and a black mother. his granny was very excited to hear how she's done but not surprised necessarily. she said all threw growing up, he was a big skrojoker, and in word, very nugaughty. >> and he draws from his experiences, the good and the bad, from his life there in south africa. that plays out on the stage, and certainly in the show that he's going to be in. i mean, this is going to be big for him. it's hard to follow in the footsteps of jon stewart. >> reporter: it's very hard to follow. and it seems like he took a safe route referring back to jon stewart a great deal. not doing anything too edgy. the general consensus out there is it wasn't a disaster, and i

think for many people that will be seen as a win, certainly here in south africa, it's on all the main papers, online and social media, everyone is talking about it. something else to note, trevor noah, he might be not well known in the u.s., but he's a household name here. many of his friends and comedians we talked to said he had a progression here, from being a vanilla comedian and then over time, once again, the trust of his audience, pushing the boundaries on issues of race, on issues of south african identity and just of global affairs. so many believe that this is just a starting point. that over time he might find his voice. but certainly here in south africa n it africa, it's a day of local kid does great. and people excited. >> it's going to be interesting to see how his comedy develops, but also how the american

viewers read him. >> hopefully warm to him over time and become accustomed to him. >> it's a tough one when you're not an american and you're doing a show like that. we'll watch closely. and you're watching cnn news room. more news from all around the world after this short break. >> and the fight that's landed a major league player in major trouble. back in a moment. ♪ it's the final countdown! ♪ ♪ the final countdown!

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key city of the taliban. >> president barack obama and vladimir putin disagree at the united nations. >> and excitement after breakthrough on mars. ed of flowing water that means life might be possible there, perhaps. >> welcome to our viewers in the united states and all around the world. >> thanks for joining us on this second hour of cnn news room.

>> and we begin with breaking news. we've been following out of afghanistan where the government says it's started to retake the city of kunduz. it fell to the taliban on monday after a stunning fire fight. >> a government spokesman says the forces have secured the prison, the police compound, and at least one neighborhood coalition spokesman also says a u.s. air strike has hit the taliban on the city's outskirts. this was the first time the taliban have been able to take a provincial capital since they were driven out in 2001. let's get to our diplomatic editor for more. nick, tell us, because this has all been unfolding the past few hours, what the status is and how much the progress the government has made in trying to retake kunduz. >> reporter: the government says

it's rushed additional troops into the area. they say they are beginning to take parts of it, a new police chiefs head quarters, the prison that was overrun yesterday by the taliban, about 5,000 prisoners were freed. what we know is that the fight for kunduz has been shaping up for some time. the taliban have been moving into surrounding areas and gettige getting stronger, essentially threatening the town. it's significant for them to take a whole town. they haven't been able to do this since 2001. it's a relatively rich agricultural province. the stretch is a significant highway that links the town to the north. for the taliban this is a prize. their leader has already been telling his fighters to spare the civilian lives, telling

civilians they should carry on with their normal jobs, that life should carry on as normal. that tends to paint the picture from the taliban would like to hold this town, but yesterday some residents were saying they saw the taliban coming in. they went into the hospital first and were going through the walls looking for afghan troops who might have been in there injured, taking photographs of themselves and leaving, giving the appearance they weren't there to stay, but the government push today is significant, because this is a blow to them, to their esteem, but also potentially, it damages morale. what nato was able to do was help support afghan troops in the field, russian reinforcements, make sure there was food and water when there was a big military push, all that sort of thing. that's gone. the government's more left on its own. we saw the iraqs out of kunduz

by the u.s. military. it will be significant for the government to retake control of this, retake it quickly, and not cause too much civilian casualties and damage, errol. >> key to retaking this town for the afghan government will be convincing locals that the government are the rightful and kind of leaders of the city. why do locals there support the taliban? you were telling me just last the hour the taliban does ebb joy some support in this area. >> reporter: typically people feel there is either corruption in the government forces, one of the reasons it's believed and understood that was said yesterday, why the government forces pulled back so quickly, and this would be the police as well, they felt there wasn't an adequate leader. that speaks to corruption in the military forces that the security forces, rather, that

the soldiers on the ground don't trust their leadership. then you have the sort of tribal afill yags, if you will, in the area, and local people, and we've seen this in the past history of the taliban. then taliban have been able to take control of cities quickly, it's because they've run over the hearts of minds of the people there. these are significant factors and will be going forward. >> we'll continue to track this breaking story. nick robertson live for us in london this morning. thanks. barack obama and vladimir putin agree they can work together to fight terrorism in syria. but they do not agree on the future of the syrian president. the leaders shared a few awkward moments at the united nations on monday before sitting down for a 90-minute meeting on syria and kraib. >> proout proooout affirmed his

for the syrian leader. mr. obama called asaad a tyrant who is fanning the flames of war in his own country. >> the united states is prepared to work with any nation, including russia and iran to resolve the conflict, but we must recognize that there cannot be after so much bloodshed, a return to the prewar stat us quo. >> translator: we think it is an enormous mistake to revuz to cooperate with the syrian government rather than fighting terrorism face to face. we should finally acknowledge that no one but president asaad's armed forces and kurd's militia are truly fighting the islamic state. >> let's bring in our senior

international correspondent, matthew chance. the russian president addressed reporters after his meeting with the president, and described the chat as constructive, business like and frank. that appears to signal good news for progress. is that the big takeaway? >> i think to some extent, yes. vladimir putin went to the u.n. with the intention of ending the sense of isolation that he's been involved with with the united states and the west in general over his activities in ukraine, and to a very large extent, he has succeeded in that aim. vladimir putin was once again front and center of the diplomatic activity at the general assembly. he's at the front and center to any solution to the syrian civil war, and the united states, however reluctantly has agreed to work with russia, and they're

coordinating in terms of making sure their militaries don't run into each other in some kind of unwanted cob fronation. it's something that's happening and the kremlin has forced. it's being something of a success for them. there's still areas of disagreement, not least the one we've been emphasizing about what should happen to asaad in a post war syria. but that's something that is going to be worked out. >> matthew chance, bringing us up to date live from moscow. thank you. >> a houthi controlled news agency says saudi led eriair strikes killed people at a wa wedding. >> saudi arabia said it doesn't have any oemperations in that area. >> the city has seen fighting

between government forces in recent months. they say the six-month war has killed at least 4,000 civilians. iran's president underscored criticism. he called for a full investigation of last week's harsh stampede. he blamed the incompetence and mismanagement of the muslim pilgrimage. more than 200 of people were iranian who died. he cut short his new york visit for a return ceremony for the iranian victims. officials say at least two people are dead and more than 300 injured after typhoon dujuan hit taiwan on monday. it dumped nearly two feet of rain in parts of the country. more than half a million people are without power. >> dujuan has made land fall.

chinese fishes are not taking chances and are taking steps to prepare for the worse. >> the storm dumped an incredible amount of rain. let's get the latest information from pedram. >> this storm system, to put it in perspective, when you think about the time people went to bed on monday night to the time they woke up, the rainfall totals in the overnight hours were more than what you'd see in london for a hour. in los angeles, about 300 millimeters per year, that would take two years. other observations, 600 millimeters coming down. a big story when it comes to the severe flash flooding potential in place over the region. let's bring down the mountains

of the central taiwan mountains. the highest density is here. we're talking about 300 mountains that rise up to about 3,000 meters in height or roughly 9800 feet in height. this terrain, as it interacts with a tropical cyclone, it's the death bed of the tropical cyclone. made land fall across the region on monday evening. it reemerged on the other side as a category one. it ripped apart. it's the northeast quadrant, or in this case, the right front quadrant. i want to break it down. as the storm came ashore, when you factor in the counter clock wise rotation, this area right here would be home to the strongest winds. in an island sitting east of taiwan, they picked up wind gusts in excess of 292 kilometers per hour.

if there was a category six, this would be a hypothetical category six. it's the strongest wind speed in japan since 1966 when there was a gust similar to this. 181 miles per hour. across the region, satellite shows you the mess left in place. plenty of clouds and thunderstorms across eastern portions of china as the storm moves over the region. the concern with this is plenty of rainfall in the forecast still as the storm begins to fall apart. roughly into the eighty miles per hour range. category one system. it will weaken and lose the tropical characteristics. the model still bringing down plenty of rainfall. when you think about the population, you're sitting at 8 million to 7 million people. rainfall totals could seed 200

to 300 millimeters. alert for this rainfall. >> such a downpour to be ready for right now. >> good to keep an eye on it. >> we'll take a short break. when we come back, water flowing on mars, and with that, the possibility that maybe we're not alone. >> that's possible. donald trump is sharing details from his tax plan. we'll tell you who it could exempt from paying taxes after the break. everyone needs protein, every day. there are more than 20,000 different proteins in the human body. they fuel our energy, support our metabolism, amplify our performance and recovery. they're essential for good health. your body's best source for protein? gnc. now get the world's best protein formulas at an astounding price.

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headline mars mystery solved. monday it announced the big breakthrough. >> under certain circumstances, liquid water has been found on mars. >> reporter: for years scientists speculated there could be water on the red planet but wouldn't prove it. years of research and exploration later, that proof has come by way of seasonal dark streaks. >> these are dark streaks that form in late spring, grow through the summer and disappear by fall. >> scientists believe they're caused by salty water that flowed across the surface. the salt content keeps it from freezing. what does this mean exactly? nasa stopped short of saying there's life on mars. >> we haven't been able to answer the question does life exist beyond earth. water is critical in that.

>> reporter: they leave the door open to the possibility. >> reporter: the president of the mars society joins us from boulder, colorado to talk about this announcement. this is an exciting day, but we've known that water existed on mars for quite some time. we don't know exactly where it is or where it went, but in your view, what's the major announcement nasa made? >> well, what's really new here is they've confirmed earlier insights of this kind. we had one as early as 2001 and 2011. and this phenomenon, the salt watter seeds are not just found in one place or another but all over the planet. this means the planet has a water table, and in underground

water on earth there is life. there could be on mars. >> so it's possible, then that the reason you're seeing this behavior from season to season is because the water is mixed up in the surface terrain and with the changing temperatures it gets released. we don't know exactly where the water is coming from. that still needs to be explored. >> sure. here's the point. the water is coming from underground. that's clear. it doesn't rain on mars. there's very little precipitation. there's an underground reservoir on mars. we had a hint on this a few years ago when there was a picture of craters, and a water erosion feature appeared on the side of the crater. it happened, and that's because water burst out of the side of the crater, and it's apparent how there could be liquid water

on mars. there's salt. just like salt melts an icy road. salt water has a lower freezing point than fresh water, and you can have liquid salt water at the temperatures we find on mars. >> this is fascinating. they detected methane on mars. when you combine that finding with salt deposits, and the varying temperatures, you wonder how could this planet not have supported even small forms of life at some point? >> it's clearly capable of supporting life. the methane discovery, that methane is either created by life or by one that can support life. we now know it's habitable. the question is is there life there. that puts to test the theory that life is a normal test of chemist

chemistry. if that's true, there's life on mars and planets all over the universe. we know there are planets around most stars. if we find life on mars, it means we're not alone. >> that's the president of the mars society. thanks so much for your time today. >> thank you. >> and this announcement piques the imagination of those who want to colonize mars, but it would be expensive to do. some people say this is exciting, but let's spend money on each other rather than throwing it into space. >> when you're doing this sort of work, it's important. the human race likes to advance in these sorts of areas. >> of course. >> and if there are people out there and we're not alone, it's a matter of what sort of life form. will they like us? and for more on the discovery of

mars just head to our website, cnn.com. donald trump admits he may come across as childish, but brushes it off as campaign rhetoric. now the businessman is focusing on his plan to revamp the country's tax code. >> trump sat down to discuss the details of his proposal which includes drastic tax cuts for the poor and the wealthy. he says his own money may take a hit under his plan. >> your tax plan, will you pay more money? will it be millions and millions, hundreds of millions? >> i will probably end up paying more money, but tail light, i think the economy will do better. i'll probably pay more. i believe in the end, i might do better because i believe the economy is going to boom.

beautiful. >> okay. so trump is promising economic growth. but how does his plan measure up against those of his rivals. >> sara murray takes a look. >> reporter: these numbers are really speck toack europe. >> tonight unveiling a plan that slashes taxes for the wealthy. this looks like a pretty good tax cut. >> this is a tax reduction. including for the upper income. >> reporter: individuals earning less than $25,000 and married couples earning less than $50,000 would pay nothing. but trump also gives the wealthiest americans like himself, a huge tax break. cutting the rate from nearly 40% to just 25%. the billionaire real estate mogul refusing to share his current tax rate. >> i fight like held to pay as

little as possible. i fight, always, because it's an expense. >> reporter: his plan most closely resembles jeb bush's. bush also calls for sweeping cuts in a top rate of 28%. rubio's plan brings it to 35% and offers broader tax credits for the nation's poorest americans. >> if i win and become president, we will be able to cut so much money. >> others say this is trump's attempt at striking a populous tone. critics say he's advocating for universal health care even as he calls for repealing obama care. >> i'm going to take care of everybody much better than they are right now. >> reporter: as trump shows america how they'll look under his leadership, ben carson is climbing in the polls, essentially tied with trump in

the latest survey. carson's surge comes even as he continues to face questions about his comments that a muslim shouldn't be president. >> you're saying you have to reject islam in order to be a president? >> you have to reject the tenets of islam. yes. you have to. >> sara murray, cnn, new york. >> on the other side of politics, joe biden has a spot waiting for him at the democratic presidential debate if he decides to run. cnn is hosting it on october 13th. >> and new criteria will allow him to participant. he would only need to file the necessary paperwork or pledge to do so. he has publicly struggled about his decision to join after the death of his son.

>> just ahead, the u.s. and russian presidents meet for the first time in two years, and we'll have more on what they talked about. >> and stepping into some big shoes, trevor noah debuts on the daily show.

welcome back to our viewers here in the united states and those of you watching from around the world. >> it is that time of the morning to check the main stories we've been following this hour. afghan security forces are now

in the process of taking back the key northern key of kunduz from the taliban who took control of it after a fire fight on monday. there was also an ire strike against the insurgents. >> officials in taiwan say at least two people were killed and more than 300 injured after dujuan hit the island nation on monday. more than half a million people are said to be without power, and the heavy rain is expected to cause flooding and landslides. >> vladimir putin says only the syrian people should decide the fate of their president. the russian leader met with the u.s. president at the united nations monday.

>> if you watched the clipson join or saw it live on television, you'll know the divisions between president obama and vladimir putin were obvious. >> the chief u.s. security correspondent has more. >> reporter: a sense meeting with syria at the top of the agenda. earlier president obama took to the u.n. stage to make an impassioned defense of diplomacy. >> we cannot return to the old ways of conflict and coercion. >> reporter: and making leer he's open to negotiations to end the war in syria. >> the united states is prepared to work with any nation, including russia and iran, to resolve the conflict. >> reporter: still, sharing a toast at a u.n. luncheon

unlikely partners in peace. >> when a dictator slaughters of tens and thousands of his own people, that is not a matter of one nation's internal affairs. >> we think it is an enormous mistake to refuse to cooperate with the syrian government and it armed forces who are valia valiantly fighting terrorism face to face. >> and missing specifics on bridging those differences to end the fighting and the flood of refugees. the two leaders were equally apart on ukraine. calling it a challenge to peace worldwide. >> we cannot stand by when the integrity of a nation is violated. it could happen to any nation gathered here today. >> reporter: president putin blamed the u.s. for stirring

democratic revolutions in the middle east and beyond with grave consequences. >> translator: do you realize now what you've done? >> president obama and putin met at and discussed ukraine and syria. they left with a fundamental difference on the roll asaad can play, but agreed a political solution to end the fighting is the goal. >> a key advisor says asaad welcomes help to stop the fighting there. >> moscow is trying to support the syrian people, not the government of syria. from the beginning, we shouldn't forget that russia and china took four double vetoes at the counsel in order to stop the bloodshed and to convince the

west that the road that the west is day caring in syria is only increasing bloodshed and only making terrorism a danger not only for syria but for the region and the world. >> and we are joined now by a professor for russian history at the american university in washington d.c. thank you for talking with us. people are using the term, a new cold war over syria and ukraine to describe the relationship on display at the unga between mr. obama and mr. putin. is that what we saw monday in. >> that's actually a euphemism which makes a lot of people feel good because it remind them of more predictable times. i think the truth is the conflicts are so much more complex and so are the sides involved in them that cold war is actually an oversimplification of an

increasingly difficult situation. >> and we saw president putin seize the agenda on the subject of syria and throw the united states off balance, but at least the two sides are talking. that's what some people are saying. how likely is it that they will work together to fight isis, or is this simply a game of one upmanship? >> well, there's no alternative to working together against isis. look, the west and the united states has tried -- have tried everything they could. nothing has worked so far. we have high ranking american officials admitting that of the 60 or so trainees, only four or five are fighting in the field. this is a disaster, what's going on across the middle east. so the russians have now inserted themselves directly into this conflict, but the remarkable thing is they are calling for a coalition. they're not trying to do anything by themselves. it looks like the europeans are

now beginning to realize that this may be the best way to go forward if they think they have a bad crisis with refugees now, if asaad's government implodes, and isis takes over all of syria, it's going to be a catastrophe of biblical proportions. >> the challenge here seems to be that each side seems to have a very different end. russia and iran wants to fight isis while the u.s. and the allies wanting to see the replooufl of asaad. the divide seems stark, and we saw that monday. are the two sides too far apart to find a compromise? >> they're too far apart on how they want to get to the end point, which is to defeat isis. as long as that's the main goal, whether asaad stays for two or three years or a transition is more immediate or a little bit longer term is something that the dip mats will have to work out. i'd be lying if i told you

there's a clear and simple answer to this. this is where speaking to each other and posing for the cameras becomes important. it breaks the ice, and now the dirty work begins. something will have to be done over the next several weeks. >> it was still very icy, though. you feel the sides might be moving closer to a resolution? >> i think it's inevitable, and given that notes a calmer attitude to asaad's power staying in power were sounded suggestions the europeans are considering alternatives, and this goes along with the russian approach to the problem. once the russians feel like they are being compromised with, they will be more willing to compromise back. >> thank you so much for talking with us. appreciate it. >> thank you very having me.

>> and there are more important by lateral meetings to come. a second face to face meeting since announcing renewed diplomatic relations. >> castro lauded the new with the u.s. but called for an end to the u.s. embargo. he said the cuban people should be compensated for the economic hardships they're enduring. >> and it's a high profile debut for a relative unknown. a closer look at the new daily show and trevor noah's plans to change it. ad so congested it's ready to explode? you may be muddling through allergies. try zyrtec®-d to powerfully clear your blocked nose and relieve your other allergy symptoms. so, you can breathe easier all day. zyrtec®-d. at the pharmacy counter.

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it's a new era for the daily show. trevor noah premiered as the new host of the show monday night. >> and he's been the focus of intense scrutiny ever since he was named.

we look at the challenges he faces. >> reporter: this might be the toughest gig in information television right now. taking over for one of the best known figures in television. jon stewart. he signed off almost two months ago. the daily show has been off the air ever since. and today trevor noah taking over and revealing it is going to be a dint kind of daily show with him at the anchor desk. a fully renovated studio, but it's a news satire, making light of the ri tick youness in the world. when i spoke to him, he said he's as interested in entertainment in sports as he is political news. he said he'll be making fun of political things like jon

stewart did. >> the truth is now i'm in the chair and i can only assume this is as strange for you as it is for me. jon stewart auz often our voice, and in many ways our political dad, and it's weird because dad has left. and now it feels like the family has a new step dad. and he's black. >> now, it's really hard to evaluate a new show after just one night. comedy central, the channel that broadcasts the daily show, said it's going to be looking at weeks and months of the ratings before determining how well he's doing. they view this as a generational shift from jon stewart to trevor noah who's 31. they believe he's going to appeal to young viewers all around the world with his style and charm and personality.

you'll see more correspondents on his version of the daily show and more musical performances. he has ryan adams booked later this week, but it will still include a lot of politics. he has chris christie booked for wednesday night. like i said, weeks and months ahead before it's really fair to evaluate trevor noah, but i'm sure lots of viewers tuning in, seeing it's going to be a different kind of show now that jon stewart has stepped down. >> many thanks. noah grew up in south africa as a mixed race child. >> david, you met trevor noah's grandmother, but americans said they liked his south african accent. surely happy to hear that too. >> that is good to hear. there might be a future for me yet, and it looks like there's a

future for trevor noah. the stakes couldn't have been higher, but certainly here in south africa, other than the u.s., this is where it was watched the most closely. extraordinary, given his humble beginnings. >> perhaps the relaunch of the year into the hot seat of the daily show, trevor noah replacing jon stewart after 16 seasons. the 31-year-old is almost unknown in america. but not so here where his grandmother still lives in the house where she raised noah as a child. >> no tears. >> he was always her favorite. >> reporter: was he always making jokes? >> always. always laughing. >> reporter: but she says it was tough for him sleeping on the

couch with his cousins. she had to hide him from the authorities. important to a white father and black mother, illegal, he likes to say he was born a crime. some people are asking how he could appeal to an american market. he succeeded here in south africa, a deeply divided nation. >> trevor is the hardest working comedian i know. >> reporter: friends and competitors alike say he's a role model here and grew from a vanilla comedian to an edgy hit. >> people are willing to hear what he has to say. that's the hardest part, gaining the trust immediately. >> reporter: something noah will have to do all over again if he wants to conquer the biggest of stages. >> certainly it's going to be a progression, and many here say

that it's, once he gains and if he gains the trust of the american audience, you could see an edgier comic filtering into american tv sets. >> i think we're going to see him grow and develop, but talk to us about how south africa reacted to his debut. >> well, certainly all of yesterday, that's really all people could talk about in south africa, wondering how it would go, expressing pride, obviously. even ministers in the government were weighing in on twitter saying break a leg. mixed reviewed but relatively well done. there's a huge breathing sigh of relief. and south africans can't watch the entire show until this evening. there's also a lot of anticipation about seeing what all the buzz is about. >> we'll be watching closely to see how he's been received here

in the united states. but, of course, this is an internationally as well, but watching to see. >> people watching this all over. >> david, our favorite south african, thanks for your time. the waldorf astoria has long been the hotel for the presidents staying. we'll tell you why president obama is checking out. ey fuel o, support our metabolism, amplify our performance and recovery. they're essential for good health. your body's best source for protein? gnc. now get the world's best protein formulas at an astounding price. buy any gnc protein powder and get 1 half off. everyone needs protein, every day. and now all gnc protein powders are buy 1, get 1 half off. only at gnc.

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there's still another week left in major league baseball's regular season but not for jonathan papelbon. he's been suspended. he's arguing with bryce harper about not running out a fly ball. and then papelbon charged harper. he sat on the bench. >> the famed al dor waldorf ast has been home to presidents when they spent the night in new york. the secret service won't let

president obama stay there. the reason? bugs. >> houses the history-making parlays of the foreign minister. >> a institution for a decade. u.s. presidents have stayed the night here when they come to town but no more. for president obama it's time to move out of the waldorf. the fear, security concerns. china has business interests that own the waldorf astoria. white house officials are worried that a lot of renovation work could lead to spying, bugging. in the movies that highlights bugging, james bond had to deal with a threat from russia. >> one of the things to be near the phone. not only checking this phone for a device that's bugging the -- your call.

also whether or not inside here there was another device. >> in your decades of police and detective work, how common was bugging in hotel rooms? >> very common. wherever somebody knows you're going to be, and they want to find your secret, somebody can place a bug. >> there are thousands of hotels for a u.s. president to stay. >> they should do air b and b. >> the dream hotel. >> he's welcome to come and stay with me in my office in queens. >> one presidential candidate won't have to face the issue. he already lives here, and his name is on the building. >> the president says across the street from the united nations and here at the palace. >> the management of this west side hotel claims many u.s. presidents have stayed here from clinton to garfield. they were guests to signed in under those names to provide anonymity. >> i'd like a room.

it's cozy. there's something on the wall and on the pillow that would be a little different than the average hotel room. loose lips is not something you want to be known for. >> world leaders have a problem finding rooms in a hurry to meet face to face. here the rooms go by the hour. >> the waldorf astoria won't comment on the departure but said the welcome mat is always open for an opportunity to return. >> trouble with bugs. >> indeed. you should always check your hotel room for anything unusual. >> you do that just in case? >> just in case. >> on that note. >> thanks for watching cnn news room. there's another edition of cnn news room.

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president obama and vladimir putin face-to-face. tensions high as the two world leaders offer different views at the u.n. and president obama set for another high stakes meeting this morning. one-on-one with cuba's leader raul castro. welcome to "early start." i'm alison kosik. >> i'm christine romans. it is tuesday, september 29th. the white house claims it has clarity after the first face-to-face sit down with president obama and russi