hari sreenivasan will talk about this with miles o'brien. but first miles begins with this appreciation, which is, turally, the focus of this week's segment on "the leading edge" of science. >>an'brien: his was a brilli mind in a severely damaged body. stephen hawking overcame the ld oss of working limbs, s own voice, to become the best- known theoretical physicist of his era. >> although my body is very limited, my mind is free to the universe, to go back to the beginning of time and into black holes. there are no limits to the human spirit. >> o'brien: hawking first gained renown in 1974, upending the scientific consensus that nothing escapes the intense gravity of black holes. brian greene is a professor of physics at colbia university: ph hawking came along and melded the laws of quantuics into the previous analysis which had left out quantum mechanics and came to the shocking realizing the black holes were not completely black. that things could get out. they could leak a small amount of energy, a small a radiation and that way we wonal

rebecca o'brien isa pattern of conduct. rebecca o'brien is a reporterfor the pattern of conduct.he case in new york, and jones is now. thank you for coming on the programme. “— thank you for coming on the programme. —— joins us. thank you for coming on the programme. ——joins us. he has thank you for coming on the programme. —— joins us. he has not been sentenced or found programme. —— joins us. he has not been sentenced orfound guilty programme. —— joins us. he has not been sentenced or found guilty for the reasons that he is notorious, is he? that's correct, that has been a strange part of this entire trial, it isa strange part of this entire trial, it is a duality, of the entire trial. martin shkreli was on trial ona trial. martin shkreli was on trial on a securities contract that had nothing to do with the activities that have made him so notorious, the drug price hikes, the twitterfeuds, the appearance before congress several years ago, and the judge today in fact said she was not considering his social media provocations in her sentencing. of course his character has been th

reporting from washington, i am jane o'brien. buey say there is no chaos the white house is facing another major departure, while a porn star sues the president. u.k. police say a nerve agent was the weapon used in an rmermpt to murder a russian spy and his daughter. day at work. i have had a bad and i try out the unsettling new sport of axe throwing.st the trented in canada. now the u.s. is taking aim. jane: welcome to our viewers on public television in america and around the world. the departure lounge at the white house is ausy place these days, andowresident trump's top economic advisor gary cohn is the latest is that -- tois say heaving. mr. cohn was publicly opposed to the president's plan to introduce tariffs on steel and aluminum imports. his resignation comes just a week after white house communications director hope hicks announced she was leaving. the white house press secretary was asked about the high turnover at today's briefing. ms. sanders: this istense place as is every white house, and it is not abnormal that y

. >>> and we will speak with soledad o'brien who hosted the o.j. simpson documentary. >>> we will go to scott reese who is watching the a's and the giants head of opening day. >> mike washes have been working -- my collages have been working overtime and they will also get more wet work we will talk about the changing weather in a minute but first it is breaking news. caltrain has been experiencing delays after someone was hit and killed by a train this morning and we have ktvu's christien kafton on the scene. >> reporter: the train is still developing in those delays. we are at 14th street in san francisco south of the caltrain station and you can see it is still on the truck into the site you can also see an ambulance. we understand that this was a fatal incident but someone was recently pulled from the train and placed into the train when it hit a person trespassing on the track. emergency personnel showed up here to the scene and trains were stopped in both directions with 500 passengers onboard. caltrain said there was no onboard injuries. we

hejane o'brien, bbc news, washington. —— beat.hing newsday. stay with us. it's the third day in our series on indian agriculture. today, the issue of food waste is discussed. that's all for now. stay with bbc world news. stay with us. hello. temperatures on the way down in the lead up to the easter weekend. low pressure close by. it is looking unsettled. some rain around in the day ahead in its first area of low pressure, there has been some uncertainty about how far north the wet weather will get. a little bit about that. south wales, southern england most likely to see wet weather but it might push further north to parts of wales and the midlands into east anglia as the day go on, getting some showers, a bit of sleet and wet snow around this, on the hills into the west of these areas as we go through the afternoon. much of northern england, northern ireland and scotland will have variable cloud, spells and showers around, longer spells of rain in the northern islands into shetlander. single temperature digits. —— single digit ca

jennifer rubin and tim o'brien are back with us.arge number of those departures have been fired by donald trump. >> right. we were just talking about donald trump not being able to get lawyers to work for him. turns out he can't get staff to work for him either. what a surprise. people don't want to work for a liar, for someone who constantly undercuts them. people don't want to work for someone who makes rash, unfounded, illogical decisions. so he's getting to the bottom of the barrel, and it wasn't that full to begin with. remember at the beginning of the administration, a great number of republicans who criticized him were on the blacklist and didn't want to go in and weren't going to be allowed to serve. so he started with a mead oaker talent pole and as we progressed over 16 months we see one after another, they get fired or they quit or they're forced to quit. so he's busy calling back the people who have been let go. what's so bizarre, lawrence, he doesn't seem to realize what would be wrong with rehiring rob porter as if he

i am jane o'brien. thank you for watching bbc world news america. >> with the bbc news app, our vertical videos are designed to work arour lifestyle, so stu can swipe your way to the news of the day anay us-to-date with the latest headlines you can download now from selected app stores. >> funding of this presentation is made possible by e freeman foundation, kovler foundation, pursuing solutions for america's neglected needs, and purepoint financial. >> how do we shape our tomorrow? it starts with a vision. we see its ideal form in our mind, and then we begin to chisel.ip we sway everything that stands in the way to reveal new possibilities. at purepoint financial, we have designed our modern approach to banking around you -- your plans, your goals, your oweams. your tomorrow is purepoint financial. >> "bbc world news" was presented by kcet los angeles. captioning sponsored by newshour productions, llc >> woodruff: good evening, i'm judy woodruff. on the newshour tonigh california sues the trump admini

soledad: i am soledad o'brien. in 1977, leon sullivan, a baptist minister from philadelphia and a member of the board of directors at general motors, introduced a corporate blueprint focused on ending apartheid. sullivan called un-american companies to pull their businesses and investment out of south africa until meaningful democratic reforms were enacted. facing government sanctions, corporate pressure, economic instability, and student protests, south africa ended apartheid and began a new era. today, sullivan's blueprint for corporate civil disobedience is being hailed as a way to tackle gun reform in america at a time when it seems congress is unable to act. elizabeth levy is a senior vice president at trillium. how do you think about where you are investing your clients' mo ney? do they say, i don't want to be invested in something like that? >> we don't invest in companies that drive more than 10% of the ulcer -- their sales from alcohol, tobacco, pornography, and weapons. soledad: this is not the first scho

as reporting fromngton, i am jane o'brien. president trump joins the intern moscow for the poisoning of a russian spy. he also has new problems from the mueller probe. a bridge collapses in miami, killing several people at the local univerty. we will have the latest from the scene. and it is all smiles in finland. why the nordic nation is ranked the happiest country on earth. jane: welcome to our viewers on public television in america and around the globe. the u.s. has joined france, germany, and the u.k. in a joint statement demanding that russia explain the use of a military grade nerve agent in an attack on a former russian spy in england. ntthe u.s. treasury depart ordered further sanctions against a number of russians for meddling in the u.s. presidential elections. moow denies any involvemen today the british prime minister visited thscene of the attack in salisbury, as james landale reports. esa may'sis was th first visit to salisbury since the nerve agent attack, a chance to be briefed by the police and public-health

is soledad: i'm soledad o'brien, welcome to matter of fact. students and teachers now back at the florida high school where 17 people died in a mass shooting last month. while they struggle to move on from the tragedy, lawmakers struggle to find a solution to stop deadly shootings. some of the proposals put forth since the shooting, arming teachers, raising the age to buy assault style weapons, and stronger background checks. gun reform isn't just a debate dividing politicians. there's also a divide between rural, urban, and suburban america. according to a new quinnipiac poll, when asked whether people would be safer if more americans were armed, 46% of those in rural areas said yes. but 65% of those living in cities and suburban neighborhoods said they would feel less safe. governor john hickenlooper, a democrat from colorado, a state that saw guns tragedies in columine and aurora, joins us from denver. thanks for being with us. so even in that data point, you see the dilemma right. is that to some degree your geography sort of forms your id

i'm jane o'brien. have a great weekend. >> with the bbc news app, our edrtical videos are design to work around your lifestyle, so yocan swipe your way throu the news of the day and stay up to date with the latest headlines you can trust. downloadow from selected app stores. >> funding of this presentation is made possible by the freeman foundation, and kovler foundation, pursuing solutions for america's neglected needs. >> planning a vacation escape that is relaxing, inviting, andi exting is a lot easier than you think. you can find it here in aruba. families, couples, and friends can all find their escape on tha island witrm, sunny days, cooling trade winds, and the crystal ue caribbean sea. nonstop flights are available from most major airp more information for your vacation planning is available at aruba.com. >> "bbc world news" was presented by kcet, los angeles. captioning sponsored by newshour productions, llc >> woodruff: gd evening. i'm judy woodruff. on the newshour tonight: an exclusive inte

amer reporting from washington, i'm jane o'brien. the secret is out -- north korea' kim jong-un did meet ntwith the chinese presiden beijing. the white house says it is cautiously optimistic. egypt's three-day presidential election draws to a close with litt doubt will be the winner. what happened to the dreams of those who protested in tahrir square? and a chinese space station is going towards earth, but don't worry, it will break up and burn. sure hope they are right. welcome to our viewers on public television in america and around the world. it has been confirmed that north korean leader kim jong-il was in -- kim jong-un was in beijing earlier this week for talks with the xi jinping. it is his rst foreign trip since he assumed power in 2011. the white house says that things are moving in the right direction. president trump is due to meet with kim jong-un by may. james robbins reports. james: this is no ordinary train -- heavily armored. onoa, the north korean leader, traveling to china to see his giant of an ally. unexplained c

w reporting frhington, i'm jane o'brien. summoned to russia's foreign ministry, and another wave of expulsions -- more than 20 countries are told that some of their diplomatsust leave. at least 12 palestinians are killed and hundreds injured after mass protests breakout on -- break out on the border between gaza and israel. and could e quantum computer soon change our lives? company says it is on the verge one of a major breakthrough. welcome to viewers on public television in america and globe.the one after another dignitaries , from western countries arrived at the russian foreign to learn -- ministry today to learn how many of their diplomats were being expelled. total, there are 23 western countries facing such forced departures after they movedow against moollowing the nerve agent poisoning of a former russian spy in the u.k. from moscow, sarah rainsford starts our coverage. sarah: it was quite a sight -- a stream of investors summoned to russia's foreign ministry. they came from more than 20 countries to hear their pun

i am jane o'brien. thank you for watching "world news america." >> with the bbc news appeoour verticals are designed to work around your lifestyle, so you can swipe your way through the news of the day and stay up to date with the latest headlines you can trust. download now from selected app stores. >> funding of this presentation is made possible by the freeman foundation, suand kovler foundation, pg solutions for america's neglected needs. >> plaing a vacation escape that is relaxing, inviting, and exciting is a lot easier than you think. you can find it here in aruba. families, couples, and friends can all find their escape on the island with warm, sunny days, cooling trade winds, and the crystal blue caribbean sea. nonstop flights are available om most major airports. more information for your vacation planning is availableat ruba.com. >> "bbc world news" was k presented t, los angeles. the newshour tonight, students return to the florida high school whfte a shooting 7 dead, as president trump meet

reporting from washington, i'm jane o'brien. rade wars trump says are good, but america's allies rkand the ma don't seem to agree. time to face the hard facts of brexit, says british prime minister theresa may, as sheys ut her vision future relations with the european union. prime minister may: we both neeh to facfact that this is a negotiation and neither of usha can have exactt we want. jane: and saying a final farewell to evangelist billy graham. politicians, family, and the faithful gather in a north carolina for the funeral of a man who preached to millions. jane: welcome to our viewers on public television in america and bearound the g it is a bit unusual for a u.s. president to welcome a war of any kind, but donald trump's message today seems to be bring it on.te yesterday's announcement that he would be introducingp steetariffs on steel and aluminum imports, he tweeted, "when a country is losing many billions of dollars on trade with virtually every country it does business with, trade wars are good and easy to win. expl

jane o'brien, bbc news, washington. you have been watching newsday. stay with us.t and vegetables are spoiled from a lack of refrigeration. we'll hear what can be done to tackle this huge problem. and before we go, let's take a look at these pictures. the chinese president, holding talks in beijing with the north korean leader, kim jong—un. there was speculation mr kim was on his first foreign trip in seven years and that is after a train associated with the north korean leadership was spotted in the chinese capital. china has traditionally brokered international talks but we are unclear what role it will play this time. hello. temperatures on the way down in the lead up to the easter weekend. low pressure close by. so it is looking unsettled. some rain around in the day ahead from this first area of low pressure, there has been some uncertainty about how far north the wet weather is going to get. still a little bit about that. south wales, southern england most likely to see wet weather, but it may push further north to parts of wales and the midlands into east an

our correspondent jane o'brien went to have a throw or two.ave fallen out with your partner or perhaps you burnt the cakes — i don't know — but what better way ease the tension and get rid of some of that pent—up aggression than lob an axe at the wall. it's not like the normal thing to do. ok, let's go and do something that i can end of my life with today so when it comes to this, everybody can just kind of calm, experience something new, it'sa bonding experience, and it is a lot of fun. now, step with your right foot. give it a good go. step... well, i hit the target. you did hit the target. that's a start. it is really not that dangerous, as long as you do not throw like a crazy person and just try to have is some fun. axe throwing is becoming alarmingly popular in the us, having make its way across the borderfrom canada. there is even an axe throwing league. that is quite a medal you've got there. how did you win it? i won this by throwing large axes at wood on a wall. so how did you do it, because i'm hopeless. what is it your top tip for

and mr o'brien you say that the reaction and the response by the u.k. to what we've seen happen in solsbury in shouldn't start world war three but what would you say what is the likelihood tonight that this diplomatic crisis could escalate into something that is much more dangerous and even something that's even you know tangible. well i mean certainly can i get in i don't think it will lead to military exchanges one reality here that i think we have to always keep in mind russia is not the soviet union russia is the tenth largest economy in the world it's actually a country that has a demographic problem or it might have a strong military but it simply is not a world power economic so the russia couldn't sustain a modern conquer the west it simply doesn't have the resources to do that and i don't think it means the west for needs to go to war over that what the west needs to do is put pressure on the russian economy which is which is i say is not very strong it's a resource based oil exporting economy which is not growing fast and they can apply fresh

reporting from washington, i'm jane o'brien. russia will expel 60 american diplomats in retaliation for similar actions by the u.s. after a russian spy was attacked with a nerve agent in the u.k. >> the disruptive nature of lrussia on the internatio stage has been to the detriment of a lot of other countries, and there comes a point in time where you have to take action. jane: add another guest to the use departure lounge -- this time the veterans affairs secretary is out, and his replement is raising eyebrow womenften hear, usually -- jane: 2 republican lawmakers form an unlikelyriendship. now the real challenges overcoming division washington. -- real challenge is overcoming division in washington. to our viewers on public television in america an. around the glo russia has taken action. today the kremlin announced it would expel 60 u.s. diplomats and close the u.s. consulate in st. petersburg. the move is a diplomatic ttit-for-tat after the u.k identical action after the poisoning of a former russian spy and his daughter on u

our correspondent jane o'brien went to have a throw or two.n out with your partner or perhaps you burnt the cakes — i don't know — but what better way ease the tension and get rid of some of that pent—up aggression than lob an axe at the wall. it's not like the normal thing to do. ok, let's go and do something that i can end of my life with today so when it comes to this, everybody can just kind of calm, experience something new, it'sa bonding experience, and it is a lot of fun. give it a good go. just like, take it up... well, i hit the target. you did hit the target. that's a start. it is really not that dangerous, as long as you do not throw like a crazy person and just try to have is some fun. axe throwing is becoming alarmingly popular in the us, having make its way across the borderfrom canada. there is even an axe throwing league. that is quite a medal you've got there. how did you win it? i won this by throwing large axes at wood on a wall. so how did you do it, because i'm hopeless. what is it your top tip for me? i go with the 2—hand

jane o'brien, bbc news, washington.bcmikeembley. temperatures on the way down in the lead—up to the easter weekend. low pressure close by. so it's looking unsettled. some rain around in the day ahead from this first area of low pressure, has been some uncertainty about how far north the wet weather is going to get. still a little bit about that. south wales, southern england most likely to see some wet weather, but it may push further north to parts of wales and the midlands into east anglia as the day goes on, getting some showers, a chance of a bit of sleet and wet snow out of this, especially on the hills into the west of these areas as we go through the afternoon. much of northern england, northern ireland and scotland will have variable cloud, sunny spells and a few showers around, wintry on hills, longer spells of rain in the northern islands into shetland. single figure temperatures. that's the big difference across southern parts of the uk compared with tuesday. some spots reached as high as 16 celsius. the chil

jane o'brien, bbc news, axe throwing queen of washington!oedake, in southern japan. a series of powerful eruptions has created a huge plume, which is now 3,000 metres high — that's the highest recorded since april in 2011. authorities are warning people not to approach the area. the volcano, which featured in the 1967 james bond film, you only live twice, has been grumbling since thursday. japan, with scores of active volcanoes, sits on the so—called pacific ring of fire, where a large proportion of the world's earthquakes and volcanic eruptions are recorded. more on the website. thank you for watching. hello. temperatures are on the up this weekend as it turns milder but we are not there yet and snow is still part of our forecast for the first part of thursday. here's a look at the recent satellite picture. this area of cloud pushing in from the south—west, bringing in some rain, sleet and some snow to parts of england and wales as thursday begins. a fairly messy looking picture, by no means everyone seeing snow. you're more inclined in the

i don't know what job he is doing on any given day. >> tim o'brien and mckay, i want to take a look at something that is a copyrighted feature of the "rachel maddow show," and this is rachel's giant big board of the trump administration departures which appears sometimes every night, sometimes every other night, but with a great deal of frequency. and there is obviously every week there is something added to it. and, tim, we have never seen -- we have never seen a graphic like that in any white house at this point. that's kind of what that looks like at the end of four years. >> the other thing to remember, lawrence, is that he hasn't filled a large chunk of federal positions. so the fact that they've got all of this outflow when they haven't even managed the inflow at this point really makes you wonder whose hand is on the rudder on the ship of state. i think the other thing that has come up with the sam nunberg event is it is this reminder that trump actually doesn't always attract the best people. in fact, he has rarely stocked his company or corporation with a-list talent. he reall

miles o'brien is here to helps understand this latest study. miles, first of all, just remin- ow does the overuse of antibiotics lead to these resistant diseases, sometimes called "superbugs. ?" >> hello, lisa. yes, what happens is antibiotics kill bacteria that make us sick. that's the simple explanation. but te bacteria over time evolve and develop an ability tn survive the susurvive the onslae antibiotics. ssence, they get smart alexander flming, who invented penicillin, discovered penicillin, just before wowad war iirned against its over use precisely because of this. a hereew more words about how antibiotic resistance works from dr. ha buche, of the tufts university medical center. >> resistance happens naturally, so bacteria have vaious mechanisms to survive. and so if they're presented with an environmenthat is n so good-- that is, there's an antibiotictrying to break through their cell wall-- they might build a stronger cell ll, or they might-- if there's an antibiotic coming in, they might pump it out. so they figure out ways to evade

jane o'brien, bbc news, axe throwing queen of washington.promise me you will never show that video. i have this image of being pinned to rotating board with katty kay trying to throw it at me. well the last thing she said to me was to keep him in line. whatever it takes. axe throwing, you name it. and the last time we spoke you with throwing pizza dough. so i think that i win. not a axe. was it fun? tremendous fun, realadrenaline buzz. i not a axe. was it fun? tremendous fun, real adrenaline buzz. i have to say ambassador chris hill left the studio rapidly. he was there a minute ago and suddenly he was not. ijust think you minute ago and suddenly he was not. i just think you should all minute ago and suddenly he was not. ijust think you should all be worried. i imagine it is a bit like screaming, scientists say it is good for you to scream and let it all out. the axe might be a good tonic. another story from china, state media encouraging men and women to settle for someone who is kind of ok when choosing to marry. what they're saying in new

kerry o'brien rule. frances mcdormand. the shape of what i. think the ninetieth academy awards also brought a long awaited oscar to veteran cinematographer roger deakins he received it for his movie bladerunner twenty forty nine dickens it is one of hollywood's most renowned filmmakers on has been nominated fourteen times so among his work so the shawshank redemption fargo james bond scott. i'm sure the celebrations are still continuing about is all the news from me getting half an hour's time on more to programs. but. put themselves on the line. to get accepted or rejected. so if you want to be president. that's a good because that's what the before you the people. interested in the was. this should. the new global economic war is unfolding in the realm of education the right to education is being supplanted by the right to access education low its high education is becoming just another product that can be pulled from the souls but it's not just about education anymore it's also about running a business and what you're good you know most of

we'll have to wait and see. >> ed: tim o'brien, thanks for your insight.ave to leave it there. >> always a pleasure. >> melissa: earlier this week talks between president trump and kim jong-un seemed very far off. now in a change of events, they agreed to meet face to face. we'll discuss how that meeting could go down. plus, 911 calls coming to life revealing chilling new details about the school shooting in parkland, florida. >> 911. what is your emergency? >> please, my son called me. there is shooting. >> okay -- >> in the high school, douglas high school. >> okay. stay on the line for me. they said it's in the school? >> yes. >> melissa: the world has been watching the on going feud with president trump and kim jong-un. now there's a turn. the president accepts an invitation for a face-to-face meeting with the leader of the rogue nation. vice president mike pence says the president deserves the credit. he said this is evidence that president trump's strategy to isolate the kim regime is working. joining us, admiral robert nader and former seventh fleet

>> joining me now is bloomberg's tim o'brien, author of the book "trump nation, the art of being the donald." tim, what a week, we are anticipating that donald trump is not looking forward to sunday when the "60 minutes" interview airs. as a trump biographer and somebody who's known the man and dealt with him, what do you think is going on inside the mind of donald trump as he anticipates this stormy daniels interview that he's sued her to stop? >> i think he clearly feels under attack and he's someone who throughout his career weaponized the legal system. he learned that at the heels of roy cohn and he finds himself now mired in a series of different legal actions with very tenacious attorneys. michael avenatti on the stormy daniels side is clearly a bulldog. he clearly has evidence he thinks will support his client's case and he's not backing down and the real factor in this that we can't discount is robert mueller who has issued subpoenas to the trump organization. so he's moving into the trump family's business operations. it will touch not only the president but his two eldest s

. >> reporter: cindy o'brien hugged neighbors outside the home of her close friend christine loeber.left an orchid at her doorstep. loeber was killed friday at the veterans home of california. >> it's just so tragic that this actually happened. at the hands of, you know, somebody that she was originally trying to help. >> reporter: loeber was the executive director of the pathway home. a non-profit treating veterans suffering from post-traumatic stress. the gunman, albert wong, an army vet, was a former client. police say wong took loeber and two others hostage. 33-year-old jennifer gonzalez shereba and jennifer golick, a therapist. golick's brother told us off camera she was -- her family is devastated. >> we lost three beautiful wonderful women. let's hope that the message goes out that we just need to help these guys with ptsd more and more so this doesn't happen again. >> reporter: cindy o'brien is haunted by a conversation about ptsd she once had with loeber. >> i did ask her when we first became friends if she ever worried about something like this happening. she was very brave

of kevin's youtube original series "what the fit" features the comedian and late night host conan o'brieno wrestling. >> i got him where i want him! >> how did it feel to get your [ bleep ] whooped? >> that was funny when you first took your shirt off. i was laughing. when he walked out, we were like, whoa, whoa whoa, i dont know if we can put this on tv! >> turn around. look the other way. >> help me out. james. james, james. james! >> "e.t." was behind the scenes for kevin's upcoming body building episode with james corden. >> we going legs? >> let's go legs. >> oh, no, no. no! >> the series will also have goat yoga with khloe kardashian and a day at the rodeo with "snl's" leslie jones. >> that's just a little miniature cowboy. >> involving the personalities that i love the most and putting us in experiences where we're fish out of water, i think you make good tv. >> now, before you laugh at anybody, i made the mistake of trying to work out with kevin. it was disastrous for me. as for when we'll see kevin back on the big screen, he's got the upcoming comedy "night school" opposite tiffa

hello and welcome — i'm christian fraser in london — jane o'brien is in washington.has today expelled seven russian diplomats from its brussels headquarters and will cancel the applications of three more who were soon to arrive. it brings to 150 the russian intelligence officers that have been ordered home by britain, the us, nato and more than 20 other countries. moscow says the mass expulsions are all washington's fault. the russian foreign minister sergei lavrov is accusing the us of exerting colossal pressure and blackmailing its allies. from moscow, steve rosenberg reports. russia is starting to feel boxed in, besieged. more than 20 countries have expelled russian diplomats. relations between russia and the west at a standstill now over the salisbury attack. russia's foreign minister hit back. "the expulsions", sergei lavrov said, "were the result of colossal blackmail by washington". but could a diplomatic war morph into something more dangerous? one of the most influential voices on russia's foreign policy admits he's worried. this confrontation has certain lo

here is a second lk at science correspondent miles o'brien's n,port from the island nat hiat originallyed last fall. >> reporter:breeding facility for endangered cuban crocodiles was a revolutionary idea, in more ways than one. cuban president fidel castro ordered it built only three months after he seized power. it may seem like an odd priority for a young communist revolutionary, but it offered an early inkling that castro would be an ardent lifelong environmentalist, able to dictate terms of preservation. etiam pÉrez fleitas is a researcher here. >> ( translated ): having nearly 4,500 animals in captivity helps us to learn many things about me species that we can then use toage them in the wild. it reporter: in addition to the scientific missi has also become a big magnet for tourism, making it the picture rd vision of how to save the action's natural resources while still atng the sort of resources cubans can take to the bank. >> ( translated ): the tourism dollars it generates go back into fundi the park rangers, the overall protection of the wild areas that surrou and helping us g

i'm jane o'brien. president trump or did sweeping tariffs on terris as thmaets ta aive.e psident possibly go as the lead lawyer resigns as mr. trump says he would like to testify. and six month after hurricane maria the people o, arstilon aed ricf ovputo o people in so many ways across puerto rico life has , been set back decades. ♪ bbc america.o esident trump has paid the way for tariffs on up to $60 billion of imports from china. being does not like it and neither do the markets, which took a plunge. thgdow jones industrial los more than 700 points. but the move is fulfilling mr. trump's campaign promise of cracking down on unfair trade practices. this is how he described the imbalance with china. gepres. trump: it is the l deficit of any ol.is out of contr h likewise, is hundreds of billions of dollars.at and s on a yearly basis. jane: for me on the tarsp, ifoky badly indeed. what would be the consequences? robert we are not in a trade war : yet. th implynep. weilow itweks,5 days, what kinds of chinese imports president trump wi target. in the meantime there is a , pe

but as miles o'brien reports, recent advances could launch 3-d printing into a new era.s the subject of tonight's lersing edge story, which ai every wednesday. >> reporter: just another day in an office park near l.a.x.ra no clue to thelers above that a whole new approach to manufacturing is underway beneath their feet.pe it's hng at a young startup called relativity; a team of for-real rocket scientists pushing space technology, by pushing 3-d printing technology to its limits. here they are printing rockets,e one to nozzle. >> rockets are the lightest weight, most expensive, largest, difficult-to- make thing that orally 3-d printing is the optimal solution f >> reporter: relativity co- founders tim ellis and jordan noone both realized this while working at one. they figured technology now makes it possible to think bigger. but to do this, they first had to build something bigger; the largest metal 3-d printer in the world. >> we made our own ping head where we have aluminum wire by this nozzle here and then we're using 11 kilowatt fiber laser to actually melt the alumi

here's jane o'brien with what we can expect next from the white house.ump is drawing upa we understand donald trump is drawing up a memo which will push these forward. in practical terms these forward. in practical terms these things take longer and there isa these things take longer and there is a question on whether tariffs will be confirmed and go ahead in any meaningful fashion. they could be overturned by the world trade organisation, which happened before when george w bush, the president then, tried to introduce something similar. there is still a lot of uncertainty but i think the bigger issueis uncertainty but i think the bigger issue is the political fallout. uncertainty but i think the bigger issue is the politicalfallout. you have a president of the united states going up against his own party, for whom free—trade runs in their lifeblood, saying he will com pletely their lifeblood, saying he will completely overrides their very stern advice against this and plough on regardless. and he is upsetting his allies around the world. but probably pl