>> our teams find out first hand how treacherous the migrants journey can be. >> we make them take a trip of death >> it is heartbreaking when you see the families on top of the rail car borderland continues only on al jazeera america >> a cease-fire breached. police say a rocket from gaza has landed in israel less than two hours before a temporary truce was set to expire. the islami he's siege by the islamic state group. and a shooting death of an unarmed teenager.

>> the truce between israel and gaza breached. the three day cease-fire was set to expire, but an hour ago a rocket landing in southern israel. it comes as fragile negotiations continue in cairo. nick schifrin in israel, tell us what you know. >> reporter: this is a rocket fired almost an hour to the minute before this cease-fire ends. it's from a gaza into an on field. much of israel is an open field so securit majority of these rockets land in empty fields. hamas said it did not, and

usually, tony, hamas owns up to it. when it fires into israel it will own up to it, so it's most likely a small palestinian faction fired the rocket to make a statement. we don't know why they fired a rocket but the point is the organization that runs gaza and is in cairo currently to make peace talks, they deny firing this rocket. so we have a situation with smaller palestinian faction trying to make a statement. >> while that is happening it looks like we only have an hour or so left than that. what do the sides want at this point? the two sides are quote light years apart according to one israel officials i spoke to.

they're asking for the demilitarization of gaza. that's not going to happen. so inside what egyptian officials in the middle are trying to do is get the two sides so simply agree on smaller things that they both with agree on and therefore they can go towards a longer cease-fire, some type of cease-fire that is longer. it's not clear whether the two sides have even agreed on that little month. one senior official telling me there is a proposal on the table. that proposal is agreeable to israel but hamas is rejecting that proposal. hamas is rejecting a commercial lengthening of the cease-fire. both sides doing a little spinning. there is still an hour.

all the negotiations are continuing according to everyone, and so we have one hour left to see whether there is a permanent crisis fire or also the other option is whether they simply decide to see if they'll keep talking for another 24 hours or 72 hours. it does not seem that this rocket attack is going to break that. the israeli military has not responded to it, that is a sign that it, too, is waiting for the end of the cease-fire. >> five people were killed today when an unexploded missile was exposed in gaza. five were killed when it exploded. it was believed to have been dropped by an israeli airstrikes. the white house said it would consider using u.s. troops

to help rescue the yazidis who escaped fighters of the islamic state group. also today authorities say 33 people were killed in seven bombing across baghdad. the attacks come as kurdish forces in the north try to fight off the islamic state advance and they will get more help from the west. france said it will give weapons to kurdish forces. mike viqueira is live for us right here in new york. mike, good to see you. the u.s. military already has boots on the ground in iraq. the white house said it's planning an advisory assessment rule. should americans be concerned about mission creep here, that this could lead to additional combat. >> reporter: i'm not sure whether americans should be concerned. americans are concerned. that's why you hear president obama and officials from the white house saying no combat

role. no combat role. they simply cannot say it enough. even in the wake of the fact that president obama has inserted 700 special advisers and other personnel into iraq principlesly to protect personnel in baghdad and evacuate them if the situation further deteriorates but now announced last night on top of 250 advisers already in country 130, and these are marines and special operation comman commando unites. today the white house did more than assess the military capability. they're there to assess whether or not a humanitarian corridor can be formed to rescue the yazidis trapped, as you outlined just moments ago. they briefed reporters from the president's vacation at martha

vineyard, he said they could nobody place. and if they're evacuating yazidis they come come in contact with those islamic state fighters and does that institute come bad bat in and of itself. >> reporter: you look at corridors, airlifts and different ways to move people who are in a very dangerous place on that mountain to a safer position. that's exactly what our team is doing on the ground now in iraq. >> reporter: so leaving the door open to more american forces perhaps forming that corridor and perhaps coming into hostile fire from hostile enemy forces. u.s. officials also note that the effort efforts in place by allied forces. slowing the advance, weakening the siege from that mountaintop. >> we're hearing word from the

french government. >> reporter: the french as well, the british as well, they're talking about air drops. the french have offered air drops well. david cameron saying whatever happens whether it be humanitarian corridors or air drops the british military will be there. >> mike viqueira right here in new york. good to see. amid over what to do over the crisis in northern iraq comes amid a power struggle, nouri al-maliki is still refuse to go hand over power to his kic successor. >> reporter: this is not the first demonstration of its kind in baghdad. hundreds of iraqis have been taking to the streets since parties replaced nouri al-maliki. he may still have some supporters but maliki has been increasingly isolated.

iraqi applications, even th --iraqi politicians even the shia party no long backs him. he's lost support from the international community and iran. nevertheless, mal maliki remains defiant. >> it is a constitution violation. it is a conspiracy being hatched inside and outside of the country. >> al abadi is the man now charged with saving iraq. he has a month to put together an inclusive and broad-based government. al abadi was due to address the nation on wednesday, but it was postponed without explanation. he faces many challenges. not only does he have to insure

that iraq's communities are represented, they have to feel that they have a stay in governing the country. >> reporter: an united iraq is needed to confront what many are now calling the growing threat from the islamic state group. the iraqi army has all by collapsed. the u.s. air force has been targeting the positions of that group but military action is limited. and the obama administration has made clear those strikes won't be enough unless they have partners on the ground. it is machine like this that they need support from if they are to tak face the islamic state group. they are calling for a regime change. >> the u.n. needs to target militias. iranian influence has to end. iraq needs to return to the arab

fold. the thousand was sunni prisoners should be released and the constitution needs to be amend amended. >> reporter: the kurds who have also fallen out with maliki's government are fighting their own war with the islamic state group in the north of the country. they have been appealing for military health. the u.s. has sent ammunition. france is sending weapons, but there is no military solution to iraq's latest conflict. national unity and real partnership amongst it's communities could hold the country together. al jazeera, erbil. >> now to the crisis in ukraine. the number of people killed in ukraine has doubled. it will only accept aid if the red cross distributes it. we speak to those who badly need the help. >> they can finally feel safe. katia is only nine months old

and her mom is trying to keep her cool in the tiling heat. nadia is like any other teenag er keen on her gadgets but she's suffering from cancer and she was brought here by her grandmother because it was too dangerous to get the help that she needed. >> we could only get treatment in luhank. >> reporter: this is a temporary shelter. more than two and a half thousand people have passed through here in a month. for some it's been a difficult journey. >> the majority of people are still trapped. there are lots of old and sick people. >> reporter: the crisis of refugees has triggered what

russia calls humanitarian aid. there is still discussion how it will enter the ukrainian territory. >> reporter: this is the very that the convoy expected to receive. but the camp set up to receive the cargo has now been dismant dismantled. >> there is no limit to russian sinment cynicism. bomb and then after that they bring water and assessment. >> reporter: but salt and water is needed here as volunteers try to deal with the growing number of refugees forced from their homes by the fighting, am if a

hayward, al jazeera, eastern ukraine. >> well russians with dual citizenship will have to register their dual passports or risk penalization. >> reporter: in many ways gregory is a typical russian. he can show his russian birth certificate to anyone who wants to see it, but because he's also israeli he's registered as a dual citizen and he's considering whether to stay here. >> i'm concerned about this law. because i think this isn't the end of it. it's just the beginning. they may eventually force people to choose between two citize citizenships and people don't have any choice whether to find it because fines are imposed.

>> reporter: human rights groups say the law itself is not particularly bad but they're worried how it might be used. >> there is a huge wave of hysteria, and that's why they are afraid that it's going to be problematic. >> how many people will this affect? how many dual nationals are there in russia? that's another one of the big question marks here because the government has never properly counted. some estimates put the figure as high as 10 million. >> if people feel some duty to the government, and if this

government is like great brita britain, the united states, it's reasonable. >> reporter: crimean get until the beginning of next yea year to comply. they might pass gregory as he leaves. al jazeera, moscow. >> in brazil a plane crash has killed a presidential candidate. it happened in the city of santos near sao paolo. eduardo come pose was en route to a meeting. officials say it crashed because of bad weather. in west africa a dug will be given tafrica an experiment

drug will be given to two doctors who have been diagnosed with ebola. meanwhile, the two doctors in atlanta are improving. they're in a special isolation you want at emory university. overnight there was another police shooting not far from where people were protesting the shooting death of teenager michael brown. [ protesting ] >> police say race relations are a top priority. diane esther brook is in ferguson. what more is coming out of that press briefing. >> reporter: that press brief something going on right now. here some of the highlights we've been table glean. the police department said that they're going to be releasing

the audio tapes from the 911 calls from the day of the shooting back on saturday. they're also going to be interviewing dorian johnson a companion of michael grown, he was with him on that day. they're also telling people if they want to protest during the day but they're asking them not to do it at night. tensions seem to escalate during the night. keep it on the sidewalks, don't go into the street. race relations are a priority. they're being advised on the department of justice and they're bringing officers from other departments to guard the home of the police officers. there have been some death threats made not only against the police officer involved in this shooting but other police officers on the officer gus son

police department. >> a couple of additional notes i'm getting here. 40 have been arrested because of disturbances so far there, and the chief just mentioned a moment ago there will be no curfew tonight. where is the fbi in its investigation? >> reporter: the fbi is early in its investigation. they came on the scene on monday. but what we do know as we talk about the death threats. a member of the new black panther party has been on social media, advocating violence against the officers in that area. the fbi is sending out a warning and to be on guard and on the look out for that sort of thing. >> diane estherbrook in ferguson for us. hillary clinton tries to smooth things over after criticizing president obama's foreign policy. that's next in power politics.

and then the power of yo, how one word could be the next big money maker in social media. when you run a business, you can't settle for slow. that's why i always choose the fastest intern. the fastest printer. the fastest lunch. turkey club. the fastest pencil sharpener.

the fastest elevator. the fastest speed dial. the fastest office plant. so why wouldn't i choose the fastest wifi? i would. switch to comcast business internet and get the fastest wifi included. comcast business. built for business. that's why i always choose the fastest intern.r slow. the fastest printer. the fastest lunch. turkey club. the fastest pencil sharpener. the fastest elevator. the fastest speed dial. the fastest office plant. so why wouldn't i choose the fastest wifi? i would. switch to comcast business internet and get the fastest wifi included. comcast business. built for business.

>> let's see. thank you. the dow returned to positive territory for the year. shrugging off weak earnings up 91 points and nasdaq and s&p 500 also up on the day. hillary clinton who is trying to preparing for a presidential run in 2016 is now smoothing tensions. president clinton said that the former secretary of state called president obama in an attempt to discuss statements made last night. clinton said that she would have send years ago to face

opposition factions. however clinton gave a different perspective to cbs news saying arming. opposition would an bad idea. >> what are you going to arm them with. maybe the best is smuggle in, automatic weapons where do you go and to whom are you delivering them. al-qaeda is supporting the opposition in syria. >> it is possible that clinton was defending the policy two years ago and that was against her own wishes still her criticism of president obama and harsh characterization o has infuriated obama's inner circle. president obama of course opposed the iraq war.

we expect to see this continue all the way through 2016. on the republican side former alaska governor sarah palin has told friends she will consider a 2016 presidential campaign. but a new poll shows that the potential number me is not well liked in her own state. 36% viewed her favorbly. 55% unfavorable. and presidential poll, don't run in the race. >> in texas purdue's company move production to mexico. he was ceo of another company that went bankrupt.

thousands lost jobs but purdue made millions and in georgia he closed plants and moved jobs to china. >> pretty strong ad. in colorado senate race republican candidate cory gardner is now using obamacare in his latest attack add. 's trying to unseat mark udahl. >> when mark udahl voted for obamacare he promised if we liked our healthcare plan we could keep it. i got a letter that my family's plan was canceled. 35,000 coloradoans had their plans canceled. >> colorado already crucial, and with ads like that, democrats are in a tough fight. finally back to presidential politics. texas governor rick perry is preparing for a 2016 presidential run, there he was making appearance at the iowa

state fair. he tried to fried bacon and he was charged up at a heckle free crowd. according to a reporter, when an event moderator thanked perry as he came off the stage, perry said, you're welcome. i'm awesome. we begged for the video if one exists. stay tune. >> all right, david, thank you. coming up. protests in missouri over the shooting death of a black teenager. one father who lost his son said it's a string of punishment to black young men in our country. >> this is a working nickel mine. it's also a cutting edge particle physics lab.

>> the shooting of an unarmed black teen in missouri has captured the attention of the country. over the past two years there have been several racially charged cases. it was jordan davis who was

killed two years ago by michael dunne. a court ruled against dunne. good to see you. >> thank you, my pleasure. >> what are you saying to those assembled in geneva during your trip? >> we are saying that there is racial discrimination that is going on right here in america, and our federal government and our state government, it doesn't seem that they have no idea how to change that. these outbreaks that? out, people are losing lives. young people in america of color are afraid to go out of their house because they think that they're being targeted not only by law enforcement, but targeted by average citizens that are now allowed to walk around with guns

due to laws of the land called stand your ground. they are now allowed to walk around with handguns. >> tell me what it is that you hope to accomplish on this trip? >> well, we have a chance to talk to global bodies. these people, they talk all around the world. when you talk to global bodies they're able to take the report and be very precise. when they talk to the representatives from the united states these are our concerns. i believe a representative from the united states will take them very seriously. i think they do have enough clout that they will actually get their point across, and then america can look at itself and say if we're supposed to be humanitarians and we're supposed to have the world follow us as a country who always helps the

poor, a country that tries to have human rights being met we are violating human rights every day of the week in america. and i think and i hope that it has to stop. >> months removed from the verdict of your son's murder trial. what do you think of the death of your son and that it ended with a conviction of second-degree murder charge but no verdict on the actual murder charge. >> the ironic thing about that he was found guilty on attempted murder charges but found actually not innocent but there was a hung jury on the murder charges. the attempted murder charges is what is going to bring him time right now. we have to look at jury selection. we have to look at that.

we have to make sure that people are informed of the case. how many times in these cases we have so many witnesses like in my son's case where it's a gas station with people pumping gas. there are witnesses. there are police on the seen withiscene within second and we still can't convict this man from murdering my son. many times it's just an one-on-one situation like the zimmerman situation. my son has been there by himself and this guy had created this crime. michael dunne would be walking the streets right now, and the cruelty of that for the family members is unbearable. i think we should look at the way that we view--the way that we view some of these crimes. the stand your ground ruling says that we must look into the mind of the shooter.

i don't think that's fair because you can't look into the mind of a shooter and try to figure out if that person is reasonable or not. that's the whole thing about stand your law ground. what is reasonable to you may not be reasonable to me. i don't think its reasonable to shoot into a car full of teenagers because their music is too loud. but apparently mr. dunne thought it was reasonable. >> this is what i want to get at with you. it is being said that you want to shame america while there in geneva. that you're angry that black men are being killed with impunity. are you angry? are you disappointed? what are you exactly. forget what the articles are saying about you and your demeanor, you tell me. >> yes, number one, i love my country. america. i want it to be a better america. i want it to be, as they say, america the beautiful. to be beautiful you have to look at what are some of the things

that you're doing. the american dream for people of color is turning to the american nightmare. you can't have law enforcement that thinks that they are at odds with the community. they're supposed to be part of the community. they're supposed to help the community. not walk around and try to overpolice the community. just like what happened with mike brown in ferguson. the problem there that i see is that you leave this young man on the street for two, three, four hours, which is unacceptable to me. people getting upset because he's laying there, he's dead. you don't have the decency to remove the body. it takes you that long to remove the body. you bring people out with riot gear, you oh know.

if you want to get with the community and calm the community down when something like this happens, have a town hall meeting, have the parents, you don't have people arrive in riot gear and then expect people to be calm they can't be calm because you're confronting them. when i come here to geneva with the human rights network, what we're trying to do going through the committee for racial elimination, racial bias, racial discrimination, we're trying to let them know that these are some of the problems that we face in america, and not trying to shame america but more try to educate america that we have to learn to live together with law enforcement. it's not something that we have to stay at odds with. if we keep doing what we're doing, every week there will be a killing of some child. you cannot treat these youth as if they're grown men. they are children.

you can't continue to use violence towards the children to get a response from the children. if children are not obeying you there are other methods as a grown person, law enforcement, anybody, at a you can take to get the attention of children rather than taking their life. >> thank you some. ron davis from geneva. it was his son jordan davis who was killed two years ago by robert dunne. thank you for your time. >> in egypt hosni mubarak denies that he ordered the killing of protesters in 2011. he was on trial for the second time. his conviction was overturned last year. he was accused of not stopping security forces from violently cracking down on mass protest. he was eventually overthrown by the up rising.

>> reporter: mohammed hosni mubarak before you today, i like any other human being make mistakes. yet i assume responsibility with absolute faith and honesty. i did my best to fulfill my dotty, and i like many will be judged by history. >> the verdict is expected sometimes in september. in syria, the last of the chemical gas pile has been destroyed. it was taken on board an u.s. ship to do the job. the ship will now begin neutralizing syria's 21 tons of mustard gas. meanwhile, violence on the ground continues. fighters with the islamic state group have taken suburbs near aleppo. the fighters could be in position to expand their territory further west in syria.

court ruling allows same sex couples to marry. >> reporter: an appeals court refused to delay its ruling striking down virginia's same-sex marriage bans. that means gay couples could begin getting married next week. lawyers representing the county clerk said they will file an emergency stay from the nation's highest court. federal judge dismissed the lawsuit to tax medical marijuana. the department of revenue targets him for not collecting taxes on marijuana. he argued he couldn't pay the tax without incriminating himself. and atlantic city casino hopes to be bought out before being shut down. owners of the casino said they're still negotiating with

potential buyers. this comes a day after the casino announced it will shut down next oh month. the hotel employs more than 3,000 people and it cost $2.4 billion to built. a man randomly attacked in new york city said he was not angry of his attacker. donald said he was returning home around 5:30 p.m. when he was slammed on the left side of his head. >> i'm watching myself walk down the street, and one minimum i'm there, and the next minute i'm gone. let's face it. nobody wants something like this to happen. it's one of those things. >> he's still in the hospital with a blood clot. he hopes the attacker is caught so no one else gets hurt. >> reporter: in texas sheriff

deputies, a gator was hanging out in the shade right near the front door of beck junior high minding it's own business when deputies got the call. a tug of water got under way, no students are on campus yet so it did not happen while students were there. >> look how comfortable it it. he's saying now it's over. looking for answers in the tiny opponents. they're looking for dark matter that has never been seen or proven to exist. we go to an underground mine in canada. >> reporter: another day in the office for researchers at snow lab two kilometers down. this subterranean labyrinth still produces nickel and there are signs of a mine everywhere.

a stringently place of high science. >> this is a super nova detect detecter. >> reporter: a device made of lead and radioactive helium. >> all of the heavy elements that form the earth and the planets came from a super nova at some point, and it was dispersed in space and available for the formation of planets. >> it blocks neutrons, which are bad for dark matter. >> reporter: they look for dark matter which has never been seen or physically measured. this is screen at its purist. rare materials, years of data collection. much of it won't find anything but should point the way for others who search. >> when we look for dark matter

we're looking for the thing to look for. that's the same of the analogy of the guy who lost his keys in the dark and the only place he's looking is under the street lamps because that's the only place he can look. >> reporter: what the discovery means from a practical matter is uncertain but physicists said it should point the way for a fundamental understanding of everything around us. >> if we understand that matter then we can understand how the galaxy was formed. how the universe itself has evolved from the big bang and moving forward through time. so understanding that matter will allow us to understand not only the particle that we think that matter is made up from, but even things why the galaxy is here today. [♪ music ] >> it's not all physics. two years ago a choir performed in one of the chambers. it plans to use low radiation for medical research for size

minimum monitoring and others. the people who work in this you week lab know they're some time away from the discovery they seek. but they have no doubt about their mission making sense of the universe from deep beneath the surface from a tiny fragment of it. al jazeera, sudbury. >> coming up, information of a new truce between israel and hamas, and with one word, the word is yo. and yo is set to become the next big social platform. are you kidding me? we'll be back in a moment. know.

>> we're here in the vortex. only on al jazeera america. s.

>> this is a press conference that is happening now. it's continuing by the head of the palestinian delegation in cairo. he has been leading these talks off and on for a couple of weeks now through nine cease-fires. he just announced this is only 14 minutes before the end of this current cease-fire that this cease-fire will be extended by five days. 102 hours that is by far the longest cease-fire and the idea is u.s. officials have been pushing for this as well to give both sides enough room to then talk about longer term, a permanent cease-fire. so long as the violence is not going on on the ground the u.s. and palestinian officials all agree without that violence it's much easier to talk about that longer term truce. this is a good sign. we haven't heard from israel yet but this is official confirmation that we're going

get. announcing a five day extension of cease-fire in order to get to a longer term a permanent cease-fire. >> it's interesting. so a rocket from gaza into a ashkalan. >> reporter: i think its important that people understand that just because one roth is fired does not mean that hamas fired that rocket. hamas denied responsibility and the israel military did not respond. clearly an indication that it wasn't to wait until this particular cease-fire ended which was supposed to be in 14 minutes. these things go down to the wire. lots of reports over the last few hours and clearly in the end according to the palestinian delegation an agreement to extend the cease-fire by five days. the longest cease-fire they have

had in over a month afternoon cease fires that have come and gone. so this is a good sign for the people of gaza who wil, and all those who are trying to bring a permanent truce. >> what is interesting if the sides are still talking you have to look at that at a positive sign. but there is a discussion to be had here about something if not lift the blockade of gaza to ease the block said, and then there is also the question of demilitarizing gaza which in essence means demilitarizing hamas, which seems like a million miles away. >> reporter: i think both sides would say that their respective requests are miles away. lifting the blockade, that will

give them according to them relief for all sorts of gazaens who have been short of water, food, medicine, construction tells all sorts of things suddenly will be able to come in. israel said wait a minute, not so fast. a lot of those construction materials, they call them dual use can be used to build tunnels into israel. israel spent more than $1 billion in construction of those tunnels israel has been destroying. israel also said there needs to be demilitarization no rockets. that is not something that they have been willing to do. that is the permanent cease-fire. but what officials will try and get to is something in the middle. something in the middle that says we'll ease the blockade but

we're not going to lift it. >> let me try one more here i'm running over time but i have to ask this question. we're talking a lot about cairo and the egyptian officials involvement in moderating these talks. i'm wondering what role the united states and specifically secretary kerry is playing in these negotiations. >> the united states is in cai cairo. hsecretary kerry chose to take a step back. he was publicly criticized by israel, so he felt that he and his aides should be in the background. but the u.s. is there. trying to push the two sides towards not only a quick cease-fire, a three-day cease-fire. that's what we heard president obama say lasting cease-fire.

that's what the u.s. is pushing. but tony, the u.s. is not in the middle of this. this is really about egypt in the middle. the intermediatary and egypt is so crucial because of the order and of course israel and hamas. >> nick schifrin for us on the phone for us from jerusalem. nick, appreciate it. thank you. new york's long island is drying out one day after a storm heavy rain left major roads under several feet of water. cars were nearly submerged. for roads that were still passable the heavy rain made it difficult for people to get around, as you can see here. those storms have now moved east. meteorologist dave warren is here with the latest on that system. >> yes, flash flooding ating across the northwest. just incredible amount of moisture in the air, and that all came out as this storm

developed and moved up the coast in a short period of time. new jersey getting the heavy rain. there is that ban right through long island. that was through a six-hour period with six inches of rain coming down in a short period of time. that's why the flooding was concentrated in this area. it is now up to the northeast with this heavy rain here. nothing like what we saw here but flash flood warnings in effect because this is coming on top of ground which too wet. the things will change over the next 4 hours. drying out as this storm moves off the coast. high pressure moves in. cool and dry air moves in through much of the eastern united states. so a little break from all this heavy rain. >> coming up, the power of yo. how--yo. yo. how one word could be the next big thing. in social media. >> the debate over the use of untested unproven drugs to fight the deadly disease swirled around health workers on the

front line. now that the "world health organization" said it is ethical to try them on people, who will get them and what can be done about low supply. we're live at the top of the hour. see you then.

>> one two-letter word could be the next big thing in social networking. the yoapp let's you say yo and send that as a message to other users. some call it the dumbest app ever but it has been downloaded more than 2 million times and received $1.5 million in funding, and it could be worth between $5 million and $10 million. come on. christopher mims with the wall street journal. he said this could be bigger than twitter. you wrote it, why do you believe that? that's a better question. >> when yo came out everyone said it was the dumbest app base

because i could send you yo and they could send back yo. but now i can send you yo with a link. and i can yo back and forth through different services. >> that's it, essentially yo. >> that's it. remember when twitter came out everybody said what am i going to do with 120 characters. tell people what i ate for lunch? now look where we are. >> this could be worth $5 million and $10 million, what does that mean? >> it probably doesn't actually mean that. if i was a venture capitalist if i gave you $1 million for your app you give me special privileges. if it's ever sold, i get that money first. these things are worth whatever people will pay for them. >> tell me about the numbers that make this such a hot app.

the young people on our show team think this is kind of cool, fun, whatever else and they give me a hard time for being an old foggy and i'm still texting. i missed the snap chat and now the yo, tell me what has captu captured the imagination of people. >> let's be clear it's only a month into being really popular. >> is that if? >> in one month they had 2 million downloads and 150,000 active users. this is a team of three or four developers. >> is that it? >> yes, mm-hmm. >> where do you think this goes? now you can send a link. at some point don't you have t to--aren't people saying, yo what? yo who, yo why? yo what? >> it's not about what you're saying. it's the fact that the yo goes directly to the alerts on your phone. when you pull out your phone. you see the text messages you

got. the push notification from e-mail. >> push notification is an alert. >> yo is any entity, any service, an can send you an yo. and believe it or not that is not a feature on your apple or android phone. >> it's not just yo if it has you writing about it, it's pretty successful at this point. >> there is one called ahoy. so you hit. >> like ahoy matey. >> just to let people know your location. yo plus here's where i am. >> all right, what was the other one, hey. >> hey, hey, that's another pa parody. >> you come back and let me know

where this thing is headed here. clearly i'm texting and i'm old hat with texting. christopher mimms. pleasure. thank yo >> a deadly virus. an untested drug and the ethics of using it when the stakes are still very high. battling ebola in the hot zone is the "inside story." >> hello, i'm libby casey. doctors and health professionals make tough decisions every day, and lives hang in the balance.