i'd of said you're dreaming. dreaming! definitely dreaming. then again, dreaming is how i got this far. now more businesses in more places can afford to dream gig. comcast, building america's largest gig-speed network. half a million protesters expected to attend the march for our lives rally in washington on this saturday with many more joining them around the country and around the world. we'll have a full report on it. plus u.s. president signs a 2200 page budget bill, but with some protests saying he'll never do that again. and melting ice in the arctic caused by climate change. and arwa damon is in antarctica reporting on natural ways that region is helping fight global warming. live from cnn world

headquarters in atlanta, we welcome our viewers here in the united states and all around the world. i'm george howell. >> i'm natalie allen. "newsroom" starts right now. >> 5:00 a.m. here on the u.s. east coast. students are calling it for a march for our lives, they say their lives are truly at stake. a half a million demonstrators are expected to attend the minerally set no washington, d.c. saturday. they want lawmakers to do something about rampant gun violence and school shootings. >> but president trump and many members of congress will not be in washington for the march. but that is not discouraging the stubtd students who organized it. >> it didn't matter who will be there. what matters is that our presence is known, what matters is that we'll be there. and i think it is more powerful that they will not be there because it shows that if they

are not going to be there, we're still going to make our voices heard. >> to us this is not a partisan issue. it is an issue of life or death because really in the end of it, everyone has their own idea of how this needs to change, but i think we all agree that this needs to change. the mass shooting epidemic is terrible. we're really the only country that has this epidemic of it, yet every other country has mental health issues and violent video games and violent movies. so what are we doing wrong as a country where this keeps happening. >> for many gun control advocates, the march for our lives has been a long time in coming and it came from the grass roots efforts of the students that you saw there from the florida high school where a gunman, former student, killed 17 people on valentine's day. >> these students are determined to have their stories told, their voices heard. dianne gallagher has more. >> reporter: the students'

movement is crushing the capital. >> i'm 14, i shouldn't have to think about getting shot in my school. >> reporter: but before they march on washington, they had to get there. hundreds of marjory stoneman douglas high school students along with their parents and teachers started their journeys on thursday. >> we'll make the statement that teens can change the world. >> reporter: cnn traveled to d.c. with a group from parkland. their seats on a plane sponsored by the gun controlled a advocacy group. >> we shouldn't have to be going to washington to march for our lives. >> reporter: in school colors and hashtags, excited, nervous and determined to be heard. >> you won't be able to ignore us because we're at your doorstep now. we'll stay here and fight. >> reporter: on just a couple you are hours of sleep, dimitri

stood alongside gaby giby never again, never again. we are your future. why won't you protect us. >> reporter: teachers wrangling hundreds of teens marching through the halls of congress searching for lawmakers to talk about their agenda, even spending half an hour with joe biden who behind closed doors talked about their unfortunate common bond of finding power in pain. >> i look up to him a lot. >> reporter: the pain is heard in 14-year-old lauren. >> having to say good-bye to your parents is the worst thing imaginable. >> reporter: she lost four friends. >> i think about might have friends every moment of every day. >> reporter: and though in the shadows of historic buildings, these teens are focused on changing their future. >> i think washington is ready for us and i think we're ready to give them hell. >> reporter: sort of sticking

with what we've seen for the past five weeks, this marriage of hope an pad pain, the nation cathedral hosted an interfaith vigil friday night where they prayed to end gun violence and people spoke. and some of those speakers were the parents of carmen, a senior, who was killed in that massacre, they talk about receiving her national merit scholarship award the day after she died and trying to use their faith to get through this, but it was difficult. across town, a concert with fallout boy and students there celebrating before their march and hoping that they will be able to take this youth movement and change things so there will not be parents having to deal with things like this in the future. dianne gallagher, cnn, washington. one of president trump's ideas for combatting school violence is to arm teachers.

se s . >> i think the number one priority is to lock the door if it is not locked and to get our students to safety. that is it. not to spend time opening a lockbox and going up against a weapon such as an ar-15. >> the united states has been at this cross roads many times before. for longer than you've been alive. you are 16. and pretty consistently the country has chosen not to restrict guns in any major way. are you concerned that this might be a lost cause? >> you know, part of me says yes, but the part of me that says yes overpowers it. i know he thknow that when colu happened, even though i wasn't alive, it was the first of its

kind. no one had seen a school shooting like that before. and when sandy hook happened, everyone was in complete shock that this could have happened and it was just -- shock. and they were so young. such a tragedy. but then now that it handed to our school, we're in high school, so a mass shooting like this, it is different for us. we understand a lot -- we understand the way the government works, we understand these laws and this legislation. we understand a lot more because we're older. and we understand our rights. and being that this is what we know and being older, i think that we're using that. and i think that with that our voices, there is no way this could be a lost cause. we'll have this march, we're on twitter, facebook. we're using social media which other generations didn't have. we're using to our advantage.

and we are not going to stop until we finally get some serious change in this nation. >> spencer will join his classmates and thousands of other people marching in washington, d.c. in just a few hours time. the march of our lives organizers say more than 800 sister protests are planned in cities around the ni sydney, au came together to show support. they are urging the u.s. government to enact some sort of gun control laws that have kept australia from having a mass shooting since 1996. australia very fortunate there with that law and how it has worked and americans in israel rallying in tel aviv friday, some of those americans were survivors, the ones here of the florida high school shooting. this is how they are spending their spring break. president emmanuel macron who says that the police who helped in a deadly terror attack

died a hero. >> he had persuaded a gunman to let him take the place of one of the hostages inside a supermarket where the incident was under way. he was wounded while entering that store. >> the gunman was killed by police when they stormed the building after a four hour standoff. three others were also killed by the gunman during friday's attack. melissa bell is following developments from trebes and she joins us now. it is unbelievable what this officer did to save people's lives. but just so tragic that in two separate areas, people still died at the hands of this terrorist. >> reporter: that's right. and his passing brings the final death toll after this space of three separate attacks by the same man to four people who were killed in all with very many wounded still this saturday morning. this behind me is the scene of

that loss damahostage taking. it is here that he hold also up with hostages as specialist police forces gathered around waiting to carry out their final assault. and it was bertham's bravely taking this woman's place that not only saved her life, but allowed the special forces to move in and take down the terrorist since the officer had left his phone on as he entered the building allowing special forces to know precisely what was happening inside. so it was an extraordinary act of bravery that did save lives. >> unbelievable. i can't imagine how his family is grieving his lost today there in france. but what about the person that carried this out, this terrorist? is there anything more known about him or his connections to isis? >> reporter: those connections are being investigated. what we have had confirmed from

france's prosecutor who came here himself yesterday to make that statement is that lakdim did enter the building here shouting allahu akbar, he did claim allegiance to the islamic state and the question now for authorities will be to work out whether he had any real connection. we've seen a number of these attacks over the course of the last couple years in france especially the smaller scale attacks that make fewer victims, carried out by a single person on the day, is that we are often dealing with people who are inspired by the islamic state, inspired by its cause for its followers to act even on their own where they can and with whatever means they have at their disposal. whether he was one of those or whether he was anymore closely connected to the islamic state is really at the very heart of this investigation that has only just begun. >> we thank you for your reporting, melissa bell there for us in trebes.

>> and now pauleen nevile jones is former head of britain's joint intelligence committee in our london bureau with us. thank you so much for your time. let's first start with this officer, his actions, his being a sacrifice that saved lives. >> police forces increasingly do face danger from terrorism. i think this particular officer's actions are quite extraordinary and i have no doubt that france will seek to reward that and make a memorial of it as indeed we've had to do in london with policemen for instance who were shot and killed in front of parliament about a year ago. so this is a very unfortunate feature of the moment of all of life in many european cities. >> isis of course has lost so much ground in the middle east, but with attacks like this, is

there is a concern that this new approach, this is what authorities will have to guard against? >> well, i certainly think we already of course have attacks generated on the soil in europe. sometimes by people who have been in serial or indeed elsewhere and sometimes by people who are simply followers and radicalized in europe. it is one of the concerns of the security services in europe that some of those individuals who have been in syria will return home, will succeed in getting into the country, and will carry out acts of terror on home soil. we don't know about this man. it looks on the face of if as if it is more likely to have been someone who was radicalized in france. there is a rather high moroccans, and he is moroccan

origin, who have gone down that path. and they will look at who he is associated with and did they help. the fact that he hijacked a car means one of the things that very often provide lead to the police is the assistance given to somebody with a vehicle, that isn't an obvious lead, but he was on their radar as a terrorist and that is one of the challenges faced by security services is what you do about the people who aren't obviously suspects that you need to watch, but who rely on the spring and they did assess this man and assessed that he won't resort to violence. and he may indeed since they made that assessment have been radicalized. i'm sure we'll in due course discover. >> you point out that he was on the radar, but the question

always comes down to when does a person become radicalized. that must be a very difficult thing for investigators to pinpoint. how do authorities stay ahead of something like that, to find out when a person becomes radicalized if there are already a known suspect. how do you stay ahead of something like that? >> the answer is very difficult. there are technologies that are coming into use particularly facial recognition so that without necessarily having to expend a great deem of resource on an individual. and following someone is immensely resource intensive. but you can nevertheless keep some track ever peopof people'ss by facial recognition techniques. but these are all at the early stages. and the honest answer, it is a great challenge and prioritizing the use of your resources between people whom you really do believe are a threat and those whom you have assessed are

not -- will not resort to violence even if they have radical religious beliefs, that is a category that is very difficult. and i think all security service people will say to you that that is the one that they spend a lot of time trying to get right. >> former head of britain's joints intelligence committee, pauleen nevile jones, thank you so much for your time today and the insight into what investigators have to do to stay on top of this. thank you. investigators in the uk conducted a search of cambridge analytica's headquarters. the firm at the center of the facebook data scandal. we'll head to london for a report about that coming up. plus a porn actress and a former playboy model both speaking out about their alleged affairs with donald trump before he became president. we'll have the story as "newsroom" pushes on.

this is a sorry that affects just about everybody on the planet. british authorities went to the london offices of cambridge analytica friday and it wasn't because of a friend request. they executed a search warrant at the data firm which is at the center of the facebook data scandal. >> there are reports that harvested data from tens of millions of facebook users without consent. and that it used the data in political campaigns including the campaign of the u.s.

president donald trump. let's get the latest now, isa soares is live in london. tell us more about the raids. what are investigators looking for? >> reporter: good morning. we just got on which tff the phe commissioner's office to find out how long the raids went on information. they went on until about the early hours this morning, about 3:00 or so, and they have been waiting for this warrant for about four days. some people here were scratching their heads if they wanded to get their hands on data, they should have got in much of quicker. the question is now if there is anything for them to actually grab. but we know that they went in yesterday and what they are trying to find out and ascertain what kind of data they have, any sort of -- how the data was used in particular for political purposes as we have seen from the expo says all throughout this week in terms of cambridge analytica using that data from football fr facebook from those 50 million

or so users and using that to target political advertising. so the commission basically said it is just one of a possible wifrd investigati wider investigation into the use of personal data for political purposes. so this is the first time that cambridge analytica will be facing this scrutiny. they are the ones that always look into every advocate's political aspects, every aspect of our life, but now the tables are turning and we don't know how long it will take, but we expect cambridge analytica to in many ways face the music in the coming days when its former ceo will have to appear in testimony to testify about what kind of data it actually did have because only last month he said he never used facebook data. >> and also we're talking when cambridge analytica, facebook as well and the name synonymous with facebook, mark zuckerberg,

laurie segall spoke with him and we want to directed our viewers to check that out on cnn.com, but the question to you, what have authorities said about him, what do they want to know about him and whether he might have to testify there? >> reporter: well, on this side of the pond as you well know, people called investigators, lawmakers calling for cambridge analytica as well as zuckerberg to testify in terms of what he knew and how much of that information was passed on to the professor at cambridge university who created this app. but lawmakers here don't feel that his apology with that interview that you mentioned there with laurie segall, whether that went far enough. and there are several reasons for that. one is that he didn't answer critical questions which really are along the lines of he knew about this back in 2015. why didn't you do something about it then. have you spoken -- have you you contacted the 50 million people that have been -- whose data is

being passed on. and also, you know, why has it taken you so long to come forward and apologize given that "the guardian" went to you weeks in advance telling you that this story was coming out. so many questions being asked and many people thought that it was just really a political response that he gave rather than a really credible one and one from the heart, george. >> we'll have to see where this goes. isa soares, thank you. cambridge analytica's reach goes well beyond just the u.s. president. it also worked for the super pac of his new national security adviser john bolton. >> sources tell cnn bolton's super pac even used some of the controversial facebook data at the heart of this scandal. drew griffin is looking into this, here he is from london. >> reporter: cambridge analytica's work for the john bolton super pac was the very beginning of using improperly obtained facebook data from tens of millions of americans

according to whistleblower chris wiley. >> they were one of the first clients of cambridge analytica to buy into the psycho graphic messaging that was developed using the 50 million facebook profiles that consider mwere misappropriated. >> reporter: a spokesman denies knowing of any alleged impropriety by cambridge analytica and the contract stipulates that cambridge analytica would follow the law and obtain all necessary permits. that contract obtained by cnn shows the bolton super pac in 2014 initially paid cambridge analytica more than $450,000 for behavioral micro targeting with psycho graphic messaging. in other words using data in an entirely new way. so you are not trying to change people's votes or win people's votes at that time. you're trying to change their minds. >> we want to change their perspective and change how they

see things. this is a really key element of what cambridge analytica does. >> reporter: for example, cambridge analytica used facebook data to identify groups in arkansas like this so-called cluster mostly male, 40 to 60 years old, that would be most influenced by imagery that tee pictures politicians getting jobs done with subjects like economy and national security.i pictures politicians getting jobs done with subjects like economy and national security. that information was then used to create specific ads targeting those people whose personality traits they had just uncovered like this 2014 ad bolton's super pac created to support arkansas republican tom cotton in his race for senate. >> he will project u.s. strength at home and abroad. >> so one neighbor might get a different message from the second neighbor? >> exactly. it is not even neighbors. it might be people in the same house get a different message. the messaging would be crafted to pick at underlying mental

vulnerabilities. >> reporter: cambridge analytica was the brainchild of steve bannon and funded by republican conservative billionaires rebecca and robert mercer. since 2014, robert mercer has donated $5 million to john bolton's super pac and the super pac in turn has spent $1.2 million on contracts with cambridge analytica. late friday cambridge analytica sent cnn a statement saying that the company is not the politically motivated unethical company that some are alleging. the statement goes on to say the source of the allegations against the company is not a whistleblower or a founder but chris taefr wtopher was a part-time contractor and has no direct knowledge of our work or practices. meanwhile lawmakers here in the uk and u.s. want answers on exactly what those practices are and whether or not cambridge analytica misused personal data

from facebook. drew griffin, cnn, london. in a moment here, we investigate another story that is affecting president trump. the playmate and the porn star, what these two women are saying about their alleged affairs with mr. trump before he became president. plus the president signed a massive spending bill to keep the u.s. government open and running, but he also issues a dire warning to congress about it. stick around. how can you make your hair even stronger? use pantene shampoo together with 3 minute miracle daily conditioner. their pro-v formula is like a multi-vitamin. making your hair 2x stronger see the difference when you add 3 minute miracle daily conditioner. ♪

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>> thanks for saying with us. here are our top stories. an estimated half million protesters are set to rally in washington, they are demanding lawmakers do something about rampant gun violence and school shootings in the u.s. organizers say some 800 cities across the world are holding rallies in support. the french president says a police than died as a hero, this machi man died after helping end a deadly standoff in southern france. colonel arnaud beltrame per waded the gunman to let him take the place of a female hostage. he was wounded during the attack friday and died in the hospital. police killed the gunman after a four hour standoff, by then the attacker had killed three other people. at least 29 people were injured in clashes with police during mass protests in barcelona. it broke out friday after the supreme court detained five separatist leaders. thousands of people turned out

to protest the spanish government legal escalation against catalon separatists. sacramento, california, this the scene as demonstrators scream screamed don't shoot, protesting the death of an unarmed african-american man stefon clark. police thought he had a weapon, but his family says he was just holding an iphone. the government has avoided a shutdown at least until october after president trump signed into law a massive spending bill to keep federal agencies up and running, emphasis on massive here because the bill is a 2200 page monster. >> you wonder how many in washington read it. it details $1.3 trillion of government spending. mr. trump had threatened to veto it just before signing it the

president made this promise. >> i say to congress, i will never sign another bill like this again. i'm not going to do it again. nobody read it. it's only hours old. some people don't even know what -- $1.3 trillion. >> despite the president's misgivings, a large increase in military spending won him over. he also received $1.6 billion for border security. >> but the bill does not address the dilemma of so-called dreamers. their protection from deportation was taken away by president trump last year leaving them in limbo. yet the president said democrats were to blame. listen. >> daca recipients have been treated extremely badly by the democrats. we wanted to include daca. we wanted to have them in this bill. 800,000 people. and actually it could even be

more. and we wanted to include daca in this bill. the democrats would not do it. they would not do it. >> the trump administration is once again trying to block transgender people from serving in the united states military. last year an all-out ban against transgender person was blocked in federal court. the new policy is directed at those who require surgery or medication specific to being transgender. >> here is part of the white house statement. transgender persons with a history of diagnosis of gender i dysphoria, individuals who may require substantial medications or surgery are disqualified except under certain limited circumstances. >> no doubt fair to say this is almost certain to spark another legal battle in the courts. the american civil liberties union immediately denounced it as reckless and

unconstitutional. stormy daniels' attorney says he has proof his client had a sexual affair with donald trump. he offered an intriguing hint at what that is. daniels, a porn actress, is suing the president over a non-disclosure agreement she says is void. mr. trump denies an affair took place. >> but then daniels' attorney tweeted this image, an image of a disk. he didn't say what that disk contains, but read the tweet's caption. if a picture is worth a thousand words, how many words is this worth? >> that dvd contains evidence substantiating the relationship and the tweet is a warning shot. i want to be really clear about this. it is a warning shot. and it is a warning shot to mike and he compa cohen and anyone else associated with president trump that they better be very, very careful after sunday night relating to what they say about my client and what spin or lies they

attempt to tell the american people. >> that is the attorney for stormy daniels. and a former playboy model is speaking out about her alleged ten month affair with president. he denies this as well. >> karen mcdougal is suing the publisher of the "national enquirer" tabloid which they says bought her story just to kill it. thereby protecting the candidacy of donald trump. her attorney calls it collusion. >> year goiwe're going to litig do what we need to do get to the bottom to the extent of which there was collusion between this quarter billion dollar company owned by a personal friend of mr. trump, a lawyer that not compaincidentally represented t players here who are negotiating with trump people, and michael cohen. >> let's talk more about the developments in washington, d.c. involving the president. many things to discuss.

amy green is a researcher at u.s. political science and author of america after obama. she is live for us in paris. thanks for being with us. you're a political scientist. i don't know where this issue comes up in your professional career, but we'll talk about the two women who say that they had affairs with donald trump many years ago and they are giving interviews on the record this week. will this be an issue that catches up with him in any significant way do you think? >> stormy daniels and karen mcdoogm mcdougal is a slow burning issue for the president. we've been talking about the fact that this just won't go away. clearly stormy daniels is not going away. she is not threatened by the president. she is not threatened buyer the non-disclosure agreement which many experts have questioned the authority of it suggesting that it amounts effectively to a gag order. and so essentially you have this person who is absolutely not afraid to persist to continue to

fight this battle in court taking the risk that the judge might force her back into private arbitration, but also with the potential victory from her of having this open to a public disclosure, you know, process. and so that could mean naming departments, naming her that her party sees as responsible for this, potentially deposing the president. so this week has been a particularly whirlwind week and series of whirlwind weeks for washington, but this seems to be the slow burning issue that isn't going away very quickly. at this point i'm not sure that many people in the united states and public opinion actually doubt that this affair happened, but the legal ramifications of it are certainly not like will i to go away anytime soon. >> he has been very quiet over it. no tweets. but let's move on to the next issue and that is the revolving door inside this white house. he is bringing in john bolton as the next national security adviser to the president.

the reaction in washington has been swift. he is considered a dangerous person for this job because of his positions he's had in the past on iran and north korea. what do you think about bolton being seated next to this u.s. president? >> this is a person who was questioned by the republican party as far back ago as 2005 when goorneorge w. bush was see to nominate him and somebody who inspires a degree of fear in terms of the opinion and proximity he will have to the president. obviously as national security adviser, he is supposed to be the fair broker filtering information coming in from the different defense and intelligence agencies, presenting to the president a host of options and function of that intelligence. so really this has to be a firewall for the president and again someone who will give him the honest truth about any number of issues, but pulling from again the expertise of different agencies. one of the doubts everyone the republican party mentioned and

wrote about this more than a decade ago is john bolton's t tendency to distort facts so as to prepare leadership or the american people for military conflict. so essentially what you have is president trump, you know, filling his foreign policy team and you can talk about pompeo, and people really going away from what president trump mentioned during his candidacy which was less american interventionism. and so going into these talks with north korea, you can ask yourself the question, who is the president bringing along with him? and if you have advisers who are hawkish toward north korea, john bolton called for a strike against north korea before it had an opportunity to develop fully its nuclear capacities, but in any case, one thing that we could deduce is that the president is effectively beginning now to surround

himself with like minded people rather than going through the motions of surrounding himself with fair brokers. you can say that he has more ideological compatible advisers and secretaries around him. >> you mentioned north korea. what will this mean to the upcoming talks having bolton in the picture. we'll wait and see. amy green, we appreciate your analysis. >> thank you. cnn travels along with the u.s. navy as they prepare for joint military exercises with south korea. we'll have a look inside -- aboard rather the uss wa schlts. and why a tiny creatures living in the waters off an arrest antarctica is so vital to the environment. all those laxatives, daily probiotics, endless fiber-- it could be wearing on you. tell your doctor what you've tried, and how long you've been at it. linzess works differently from laxatives.

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more hopeful signs to report from the korean peninsula. north korea has just accepted south korea's proposal to hold high level talks. those talks will happen next week at the border truth village in the korean demilitarized zone. both sides will send a three member delegation with the hope of easing tensions between these two countries. >> earlier in month the u.s. president accepted an invitation to meet kim jung-un, this in hopes of securing north korea's denuclearization. that historic meeting though has not been finalized. it is expected to happen by may. while those talks move ahead, u.s. and south korea are preparing for their joints military drills, an annual drill that typically provokes outrage from north korea. >> paula hancocks has reported

that north korea understands these will go on. ivan watson reports from a u.s. navy ship positioned in the philippine sea. >> reporter: this is an example of how the u.s. projects military might into the asia pacific region. we're aboard the "uss watts," a uss navy ship in the philippine sea and the military is demonstrating how marines and sailors work closely together out here. we're also being shown the m-35 lightning 2, a brand new warplane that has been described as the world's most expensive weapon system. >> for our enemies, the new capabilities simply make us more lethal. we have the ability to ultimately win a combat. >> reporter: officials at the pentagon tell cnn the uss watch will be participating in annual joint military drills conducted

in south korea in april. the war games involve tens of thousands of u.s. and south korean troops and sailors. just last year, the u.s. was engaged in major shows of military force in the region in response to north korea's ballistic missile launches and nuclear weapons tests. but what a difference a few months makes. now that president trump says he is willing to meet face-to-face with north korea's leader. what we're seeing here is a demonstration that if this experiment in diplomacy fails, the military will continue to provide the first line of defense to the u.s. and its allies in the region. ivan watson, cnn, okinawa. and now we'll take you to antarctica coming up here to learn about a tiny creature that is having a global impact.

arwa damon is there for us.

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antarctica all week and the effects of global warming and increasing levels of carbon monoxide that is in atmosphere. >> one tiny creature in the waters of antarctica is helping to offset the harmful emissions. arwa damon takes a look. >> reporter: there are whales just about everywhere feeding on krill. krill are tiny shrimp-like krus crustaceans that form these massive swarms. krill are one of the many reasons why the antarctica waters are part of a conservation zone and its balance is essential to our very existence. these waterswildlife are a carbon sink. and that though still being studied is the antarctica's potential to act as a buffer to

climate change. i didn't know much about krill before we came here, certainly not that they were a keystone species holding the antarctica food web together, or that they themselves move ultimately to the ocean floor. the journey of consider bon starts with algae which photo synthesizes carbon monoxide from the atmosphere. >> krig feeds on ll feeds on al kids in a mcdonald's restaurant. the remains just sink to the deeper water. and the same is true for the krille. >> reporter: yes, it is a conversation about poo. carbon rich krill poo that ends up at the bottom of the waters. and it is not just the krill that play that role. so too do the whales that feed on the carbon rich krill, masses of it. but these are also the main krill fishing grounds. it is a regulated industry. but it is one that green peace

and others want to see restricted to outside of the main wildlife feeding grounds. >> they are catching krill 24 hours a day for the whole of the antarctica summer. >> reporter: back on green peace's arctic sunrise, marine biologists are radioing the fishing vessel for details of their catch. >> you can tell something about the volume of the catch? >> 3600 tons. >> reporter: that may sound like a massive amount, and it is. krill do have the largest biomass of any species on earth. but its numbers have decreased though it is unclear whether it is from climate change or other factors. and green peace is pushing for action before we reach a crisis point, especially in a region as

vital to our survival as this one. green peace's mission is also aimed at documenting the vast and wild beauty of this ecosystem to show just what is at stake of being lost. this is the view as dawn breaks. i never even imagined anything like this. i don't have words. i'm honestly lost. it is just -- it is literally taking my breath away. it is such an extreme beauty, my brain doesn't even know how to process it. >> it is beautiful. >> reporter: andre, a mechanic, first came to the antarctica eight years ago and has returned

numerous times as a tour guide. do you love this place? >> i really do. i miss it. when i'm at home and i see the picture, i'm really missing this place. you can see it is beautiful, really calm and really amazing place. i think it needs to be protected. >> reporter: man has been unable to dominate this unforgiving region on, but that does not mean it is immune to human deconstruction. arwa damon, cnn. thank you to watching "cnn newsroom." i'm natalie allen. >> and i'm george howell. for the united states, "new day" is next. for viewers around the world, amanpour is next.

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that grow with your business. at&t, not so much. we give you 75 mbps for $59.95. that's more speed than at&t's comparable bundle, for less. call today. good saturday morning to you. i'm victor blackwell. >> i'm christi paul live in washington where let's say it's been a week of turmoil and chaos. there's been controversy even in just the last 12 hours. seems like we're just getting started here. last night the white house announced a policy banning most transgender people from serving in the military, a move that's already drawing criticism from democrats and promises from advocate groups to fight that ban in court. >> hours from now the white house and congress will face a different type of