a year ago today nearly 300 school girls were abducted at gun point by boko haram. no one brought them back. >> the iraqi prime minister set for his first official visit to the white house. isis commits more atrocities in his country. >> in the u.s., a white

volunteer deputy is charged with manslaughter after shooting and killing a black suspect. hello, welcome to our viewers here in the united states. all around the world. i'm rosemary church. >> i'm errol barnett. this is "cnn newsroom." >> now we begin in nigeria this hour where the country is marking one year since boko haram mill stanitants kidnapped school girls. wearing red tape across their mouths as you see. 57 of the girls managed to escape. the fate of the rest remains unknown. >> unicef says more than 1.5 million nigerians including 800,000 children have been displayed by the violence caused by boko haram. cnn's correspondent joins us

live from the nigerian capital where a march is expected in the cupping hou coming hours. talk to us how the newly elected president might be able to tackle thisser ese eser issue. -- this issue. how different things may be under his leadership. >> well, rosemary, a statement released by the president-elect, yesterday, really quite honest, but also quite blunt. as to the situation. it is a departure from what we heard before from the outgoing government. he says that really honestly they have no idea where these girls are. but that they will try their best to find them. there has been a lot of criticism of the outgoing government. about their response. and the campaign, standing here, later today, marching one year on, these girls haven't been found. a lot of criticism against the outgoing government. and we spk oke to one of the

campaigners, about the anger, not just the girls missing. they're standing here one year on with the girls still missing. here's what they had to say, rosemary. >> in nigeria, our men have heard our cry. but this -- this very huge man held me during their visit. on day 30. and said -- we will hope to till the very end that our daughters will be brought back. please don't give up on them. and the movement made a promise. and said, we would. we would stand with two. until -- there is no reason to stand. >> and worth repeating the story, rosemary in two hour's

tie, one year ago, boko-haram militants went in and loaded up over 200 girls into the back of a truck. and since then, nothing has been heard of them or their whereabouts. rosemary. >> and, hey, christian. errol here as well. within of the things that is probably most disturbing abut this is that -- when it comes to trend in nigeria not just the 200 school girls kidnapped by boko-haram, a much larger, more seriouser to. boko-haram have created for years. what's been done about the overall safety of people in many parts of the country. >> yes, these girls didn't really just disappear out of nowhere. errol, you mention, unicef saying 800,000 children have been displayed by this boko-haram insurgency. chaotic, brutal war in nigeria.

gone into schools and slaughtered students in their sleep in their dormitories. it's been extremely brutal. but even, before that, you know some of the figures for northeast nigeria. women's education, women's maternity deaths. some of the worst in the world. really this, the girls is, in a screaming priority for all governments and all, everyone who's attention is on this. symptom of a much wider problem. whichever government come in. whatever campaign continues, it's going to have to focus all most as the a broader, use of the problem to make sure this doesn't happen again, errol. >> there is newly elected leadership there. such a big issue, you wonder if any government could really stamp out boko-haram. so consistent. thank you very much. >> now, a draft resolution goes before the u.n. security council today to impose sanctions and

arms embargo on the houthi rebels that control much of yemen. could be vetoed by russia. >> they continue to hammer houthi targets. the rebels are under fire from al qaeda. it claims to have killed fighters with a motor seekle boseekle -- motorcycle bomb monday. >> they're fighting rebels on the ground from its side of the border. >> that could change if talk of ground incursion turns into action. nick robertson has more from the saudi/yemeni border. >> reporter: for the first type since air strikes began. saudi arabia's army is giving access to journalists. for local reporters, the army is a point of national pride. big guns.

banging out big shells into yemen. for now, this army standing back to fight. >> we don't have orders to move forward. right now we are in a defensive position. we don't hatch any order to go on the offensive for now. when it come to sustaining the fight, saudi arabia has deep pockets. it's the world's third largest defense spender behind the united states and china. according to institute of strategic studies it spend 10% of gdp on defense. that's a massive $80.8 billion. the desert kingdom has more than 400,000 servicemen. 225,000 in the army. 125,000 national guard. 30,000 navy. and air force. still looking for partners to bolster its coalition. pakistan declined a request for troops. on the stating front lines that we visited, looking down on to

yemeni village. a long drawn out fight is looming. commanders they face in the villages, they can't tell who is a fighter and who is a civilian. they say they all dress the same. >> translator: we face threats from armed groups. they use small vehicles, mounted with guns. in these mountains, they're hard to reach. >> reporter: on the mountain tops, more fire power is being used. and it seems often. fresh shell casings litter the ground by this machine gunner. his responsibility, as far as he can see. but this is a long border. 800 kilometers. 600 miles. and summer, scorching heat is coming. as yet, no sign the enemy is ready to quit.

nic robertson, cnn, saudi/yemen border. >> iraqi prime minister's first visit will focus on the battle against isis. al abadi to meet president obama in the white housen the coming hoursen fact. mr. abadi toemd reporters he'll ask for more. he wan isis controls about 1/3 of iraq. >> isis withdrew from tikrit recently. but the fighting is far from over. awar damon reports the president's trip to washington, comes as the country copes with tax on a number of friend. isis is tryinging back and hard. this video posted by isis shows thick plumes of black smoke rising from the oil refinery. the refinery had been under government control for months.

isis in a statement posted on line claims to have broken through the refinery's outer defenses. after deploying a suicide bomber and plea tekting from multiple sides. t a glimpse of the technology used to direct their military operations. also over the weekend, launched multiple assaults in anbar province. taking over three towns north of the provincial capital, sending residents fleeing on foot to safer ground in the city. in another area not far from baghdad. iraqi security forces and local fighters battled for hours to keep isis from advancing. but without more troops and weapons, they went be able to hold isis off for long. tikrit may be back. other fronts are faltering. dispelling any notion the

organization was weakened. it is against this chaotic battlefield backdrop that the iraqi prime minister al abadi heads to washington key on his agenda. more military support from the united states. >> number one is a marked increase in the air campaign and delivery of arms. this is vital. there has been an increase. that's noticeable, very noticeable. i am thankful for that. but we want to see more. >> reporter: but the u.s. has long been uncomfortable with iraq's relationship with iran, a country that also has been playing a vital role in the war with isis. and al abadi faces the challenge of alleviating america's concerns. >> yes i agree there has been some concerns. there are concerns not only in iraq but the whole region, there are concerns in the meddling affairs of each other's country.

there has been a spread in the region. i think we have our own sense. iraq is a neighboring country to iran. some countries have their own problem to iran. >> a tough sell as iraq has long been a proxy battleground for various nations and interests. that are going to have to somehow align. iraq and al abadi says can defeat isis but not alone. >> isis is also systematically destroying cultural artifacts. this propaganda video of the obliteration of the ancient city. seen attacking the 3,000-year-old site with sledge hammers and power tools before blowing it up. it was the city in the asyrian kingdom between 900 and 612, b.c. the u.n. called it a war crime. >> the united nations is doing all it can to help those trapped at the yarmouk camp.

it supplied urgent aid monday to around 500 civilian whose fled the camp. a human rights organization says isis and another militant group control about 90% of the camp. annestne es annest -- estimated 18,000 are trapped between the syrian government and armed groups. >> we are hearing from the passenger who was riding with a man shot and killed by a police officer. next, hear what he is saying about this deadly shooting in south carolina.

welcome back. two new developments in the case of a deadly shooting in south carolina. involving a police officer, michael slager and victim walter scott. the man a passenger in scott's car finally broken his silence. >> according to abc news, pierre fulton release this statement about his friend. and here's some of what he says. over the past five years -- he helped me to become --

>> now, we are also hearing new audio from officer slager. we have the awedy here for you. this is slager and another officer immediately following the deadly shooting. >> officer slager was heard on a phone call with a woman believed to be his wife. >> now we want to got you to oklahoma where a white reserve deputy will face criminal charges. accused of killing a black man. he told investigators he accidentally fired his gun instead of his taser during a struggle with police. >> the deputy robert bates is a volunteer who worked as a full

time police officer for just one year. decades ago. that lack of experience is now being called into question. >> reporter: moments before he was shot -- >> it's a luger. a luger. german luger. >> reporter: harris spots a swarm of undercover agents and runs. a deputy tackles harris, when 73-year-old reserve deputy, robert bates shouts he will use his taser. but the tulsa county sheriff's office says that bates grabbed his gun and pulled the trigger.

>> reporter: as he lay dying, the officers taunt him. retired police officer named jim clark has been brought tune review the fatal incident. >> you can train some one as much as you can, and you train in every area that you can. but in times of crisis, sometimes, training is not going to take you through the scenario. >> with the video release, questions turned to why bates, an unpaid uncertified deputy was on the scene in a sensitive sting operation. >> mr. bates lacked really any kind of training. mr. bates had been a tulsa police department officer from

1964 to 1965 for one year and never passed probationary period. >> reporter: he says, bates was afforded opportunities within the task force due to significant, long standing financial support of the sheriff's department. >> he could do anything he wanted to. you heard the sheriff's department say, like any other officer could do. but he could do it with no training. he could do it with total access. carte blanche freedom to do what he wants to do. that's incredibly dangerous. to a community. >> reporter: a sheriff's department spokesman tells cnn this afternoon it stand by the deputy's actions. the da makes clear they see it differently charging robert bates with second degree manslaughter. >> joining us now to talk about this a bit more indepth, is mark lamont hill joining us in atlanta. good to have you here. >> good to be here. >> you watch police shootings. each month new video revealing what seems like an unarmed

blackman being killed. what does this mean? what does this reveal about police culture in the u.s. when it comes to minorities? >> at the very least it means it needs to be investigated a thicker, deeper analysis of what is going on. everything is different. this case is tulsa, likely the case of a man who made a bad choice. a mistake. di different than south carolina or what we may have seen in ferguson. the nation is paying attention to law enforcement asking tough questions. >> let's look at the example in tulsa. we know in the situation there, the reserve deputy, his attorney, and he is boss. are using the defense of excusable homicide. what do you say? >> the jury is out on that. literally. possible that they is a homicide turned out to be, ruled to beep justifiable. other cases that has not been the case. look in oakland in 2009. oscar grant, famous case. he died because an officer said he pulled a taser, intended to pull a taser and pumd a handgun.

this isn't about an individual officer's choice, good or bad, a structural problem here. why is a 73-year-old officer, part of an important stening? after the shooting an officer was heard on tape saying "f your breath." suggest malice, may suggest do some, indifference to human life. could hatch just been the heat of the battle or something serious. we need an gaegs to find out. >> what does this stem from or point back to. is the solution, body cameras. in anything ak some police are turning them off when they feel like it. is it tasers ander to of south carolina, a taser that was being planted, possibly. are police officers too willing to use deadly force in general? or just too difficult to know when a national skill? >> a range of issues. look at the fact that black people, black men in this case are overrepresented in death tolls when it comes to law law

enforcement. irrespective of the officer choices. the fact that plaque men are overrepresented. body cameras are part of the equation. more surveillance, what is happening in the heat of the bal. the doesn't just help us convict, bad police officers but exonerate good police officers. also part of the equation. at the end of the day we don't want to simply catch police officers killing people or excuse police officers for killing people. we need to resolve the root problem. what leads people to be killed in the first place. deeper question. how we patrol. punish folk. and what results. from the criminal justice system. >> what about the question of training the police officers, is it adequate when you look at individual circumstances? >> it is not. part of the reason we train, color blind. race neutral. treat everyone the same. in our society. we have scripts in our mind who

is dangerous, who is not. w our response to people is different. what we need is a kind of training, professional development that forces office herbs to account for race so they can make better decisions in the heat of the moment. >> many thanks there to cnn political analyst, marc ma lont hill. for more log on to cnn.com. >> another contender efrntered the u.s. presidential race. republican freshman senator. marco rubio. hillary clinton announced her the day before. they join two republicans fighting for america's votes. senator rand paul, kicked off his campaign. he followed senator ted cruz, the first republican to enter back march.

>> political newcomer, ben carson is expected to announce his candidacy. >> if he wins, marco rubio would be the united states first hispanic president. >> right. he made his announcement in miami in a building with great significance to cuban immigrants. rubio played up his story of being the son of cuban exiles. saying he is america's future. take a listen. >> we americans are proud of our history. but our country has always been about the future. and before us now is the opportunity to author the greatest chapter yet in the amazing story of america. but we can't do that by going back to the leaders and idea of the past. we must change the decisions we are making. by changing the people who are making them. voters won't head until the polls, 573 days from now. >> hundreds of nigerian school

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welcome back to viewers in the u.s. and around the world. this is your last half-hour of cnn newsroom with us. i'm errol barnett. >> i'm rosemary church. time to check the headlines -- nigeria is marking one year since boko haran militants kidnapped 200 girls.

the new president vows to make every effort to free the missing girls. a march planned in the capital in the coming hours. >> nawe north korea's first lad made a rare public appearance in pyongyang. and she was at the match with her husband, kim jung-un. first public appearance since december. >> schools in sierra leon are opening tuesday. first time in eight months. the company shut the schools down when ebola erupted in west africa last year. they were scheduled to reopen march 30th. but the date was pushed back due to a spike in new ebola cases. >> we want to get you this information just in to cnn. authorities have arrested two british nationals suspected of trying to illegally cross into syria from turkey. now police arrested one man tuesday at birmingham airport. and another monday night. confirmed the cases are in fact

linked. the men were part of a group of british nationals caught trying to cross into syria earlier this month. keep me posted on that development. the social media movement. bring back our girls began. >> as the weeks and months went by, the campaign faded from the mind of many. now one, reporter in snooi nigeria is keeping it alive each and every day. >> i do this every day because the parents of these girls don't have a voice. and i took it upon myself to give them a voice. to tell them that -- that they are not alone. we cannot just give up. we have gone too far. and we try that. i know what it means to be a way from our my children.

[ indiscernible ] >> tears come to my eyes. each day he asks me. are you sure. >> i know. i believe. i hope that one day. this will not be showing my face every day. it's not for fun. ate not i'm having fun. ate e know that i enjoy doing this. i wish i stopped this moment. because it also, is stressful for me to keep standing. keep taking pictures. no stopping. no, no betray my emotions and the trust that i have in the struggle. the day before yesterday was

some where in the north. tomorrow, it will be my village. so, why am i not cry hard and loud snow. >> these girls have not done anything. any crime whatsoever. want to go to school. they want to a better life. the promises over and over. that the girls will be rescued. the question is, when will these promises actually be realize d.e [ indiscernible ] >> i think the whole world is let down. because just a few -- were able

to sustain. ♪ ♪ >> i do this because i dare to be different. it is a cross that i have carried upon myself. and i vow to not give up. and i mean every bit of my words. >> keeping those girls in our thoughts. for more, on the kidnapping, we want to bring in daniel aire, a researcher at amnesty international. live from london. thank you so much for talking with us. of course the numbers are horrifying. at least two women, women and girls have been abducted by and now we mark the first anniversary of the abduction of the school girls.

what has nigeria and international community been doing to try to get them back. >> we have seen a series of steps by nigh yeeria and the international community. many countries around the world pledge sad part to nigeria. after a series of conferences it was decided international community would train the military. would provide intelligence. and also that, a regional joint task force would be firmed to combat boko ha ram. now the i jeerian military. boka captured many downs. and the military has been pushing them out of the towns in the last two months. it doesn't mean that boka had has been weakened. many, many civilians are under the control of boko haram.

>> they know where they are, their location in north eastern nigeri nigeria, why is it so difficult to shuttle them down. stop them in their tracks. >> well there have been a number of problems facing the military. there have been reports coming out from the government, sorry from soldiers that, have nod f not had enough ammunition, weaponry. i think that's begun to change. as i mentioned in the last two months, the military has reinforced its troops in the northeast. has sent additional arms ammunition. we have seen the gains in the last two months. but boko haram is still moving around in, sort of the -- more remote regions of northeast nigeria. and remains with a large civilian population under their control there. >> and what more are we learning

about the scale of the depth of their depravity? i know amnesty international put out a report. what more can be learned through that report? to sort of help stop them in their tracks? >> well we have learned a lot about the horrifying treatment that civilians in boko haram territory have been subjected to. some of the women/girls we have spoke in to have told us about boko haram fighters using rape, forcing them into marriage and also training them for use in combat. i spoke to a 19-year-old woman, aisha, abducted in september of 2014. taken to a boko haram camp in a different state in nigeria. she was repeatedly raped on occasion by six men and also trained in how uh to shoot, how to use explosives and actually taking the operation back to her own village.

not just women and girls that are suffering. we have had testimony from men, told us, large numbers of men were executed when boko haram took over towns and cities. i spock with a man, he was told to join boko haram. he refused and was forced to watch as 27 other men were executed in front of him. the knife that they were using to execute the men became blunt. it was thrown on to a pile of corpses. fighters shot at him. luckily he was hit in the shoulder. after they left he was able to escape. we are still gathering testimony pa but what life has been like under boko haram control. and this can be galvanize more in the east. >> the details are horrifying. let's hope the information that is being gathered with this can do just that. daniel ayer, many thanks for detailing that for us. we appreciate it.

>> five chinese feminists are out of jail. but they're not quite free from the communist government's hold. more on their release and what they will deal with for the next year after this short break. we do? i took the trash out. i know. and thank you so much for that. i think we should get a medicare supplement insurance plan. right now? [ male announcer ] whether you're new to medicare or not, you may know it only covers about 80% of your part b medical expenses. it's up to you to pay the difference. so think about an aarp medicare supplement insurance plan, insured by unitedhealthcare insurance company. like all standardized medicare supplement insurance plans, they help cover some of what medicare doesn't pay and could really save you in out-of-pocket medical costs.

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welcome back, everyone. five chinese feminists are out of jail after being detained more than a month. authorities released the women on monday. >> police took them into custody last month before events planned for internation name women's day. that led to an outcry from activists in china, u.s. politicians really people all over the world. and there are some conditions to their release. for more on this, let's tornado to david mckenzie live from beijing. david, this is interesting. these women enjoyed support among people there and politicians, before they were detained. now though they really completely out of the woods?

>> that's right. they're not entirely out of the woods, errol. and yes, over time through the years of them doing this work, ground breaking work, must be said. by some of them to promote gender equality. they were praised by even government sources now. we find the situation that they were jailed more than a month. they have ben released. now. amnesty international calling it a break through. encouraging breakthrough. severe restrictions put on these activists. >> reporter: they're leading feminists in china, five young trail blazers. detained for 57 days, now one of their lawyers tells cnn that the five have been released and a strict bail conditions. their every movement monitored for a year. ♪ >> reporter: the activists were picked up last month before international women's day where they planned to do outreach like this. campaigning against sexual

harassment on public transport. they were swiftly put into detention. the five activists were brought here to the notorious detention center outside beijing. they languished without charge for more than a month. >> as much performance artists as activists they cam paend to stop domestic violence for more public toilets for women and they were praised. awaiting the lawyer thee shaut they were safe. she was not prepared for detention and when i saw her last friday sunny was shocked. outrage spread on social media with the free the five hash tag campaign. high profile support from the likes of hillary clinton who called it inexcusable. the chinese government says its judicial sovereignty should be respected saying china is a country ruled by law. >> translator: of course people will feel afraid, he says, because women's rights is the

most politically corrector use in china. those who took those out ended up in jail. out of jail but not free from the grip of the communist party. >> errol, many people are still asking why the five women were picked up in the first place. one answer could be that their activities were planned during the national people's congress, very sensitive time. >> yes, here. there is another issue at play here. over the last several years. people appropriate testing or organizing on issues. that the government has been rope moting. like rule of law. anti-corruption issues and the environment. have been detained and in some cases charged. so it does seem the communist party is still nervous about those who campaign even in this case on quite apolitical issues from the ground up. errol? >> quite ironic, the government showing an effort to address these important issues.

but they're reluctant to allow a full-fledged, open, debate. david mckenzie. live for us in beijing. thank you very much. new research reveals the city with the dirtiest air in the world, is it beijing? do you know the answer? we'll reveal. next.

this just in to cnn. australia's prime minister tony abbtott announced his country will deploy 300 military personnel to iraq. he stressed the deployment is not a combat mission. they will instead help train iraqi forces to confront isis. the australian soldiers will work with about 100 members of new zealand's defense force on that mission. >> all right. there are more concerns about the cleanliness of brazil's waterways and of the 2016 olympic games. authorities are investigating what caused schools of dead fish to litter rio's olympic rowing course. test events are set to begin in july. but athletes are already finding not only the fish, but the smell. >> oh, man. the scene is horrible. and just last week, this video

was released showing sailors colliding with floating garbage in rio's bay. the site of olympic sailing events. the city pledged to get rid of the mess. but announced the bay will still be polluted for the games. >> that's adding another challenge. i want to turn to india now where they different pollution is making headlines. new research shows the capital city of new dehli is home to the dirtiest air in the word. >> imagine living in this, created by so many cars and so few regulations. our correspondent has the story. >> reporter: early morning, barely visible in the smog. delhi's iconic india gate. for years most people in the sprawling city of 23 million never questioned the quality of the air. just a mix of desert dust and winter fog was the urban myth.

but in 2014, world health organization study of 1600 cities found india's capital has the most toxic air in the word. largely due to the highest concentrations of microscopic particles known as pm 2.5. we go on a rickshaw ride with american scientist joshua aptae to test the air for ourselves. he has been monitoring the city's pollution since 2007. >> levels appear 2.5 right now. 200, to 500 microgallons per meter. >> everyone keeps talking about how it is in beijing. >> levels in delhi are higher than beijing. >> really? >> the standard world health organization is 10. typical levels in beijing are 100. in dehli, the past year, the

average is 150. >> reporter: aptae says off to the naked eye, dehli may not appear as bad as beijing but 2.5s are practically invisible but most damaging to the lung. to help residents cope with the bad air, a entrepreneur developed an air purification technique combining filters and plants. since the pollution problem started making headlines sales have taken off. >> every year the problem is getting worse. not getting better at all. we are adding 1,400 cars to our streets every dave in the city of delhi. qualm tee of the fuel is poor. and we are burning a lot of biomass during the wintertime for people to stay warm in the winter. >> reporter: as india makes economic development a priority, pollution levels are only set to increase. studies show some 660 million

indians lose about three years of their lives because of the air they breathe. but for change to happen, experts say, india's policy makers need to first catch wind of a problem they can no longer ignore. meteorologist joins us with more. and viewers, traffic, car, pollution. this will take years off your life. >> absolutely. number one cause of premature death in the world. pollution is. you kid beijing. talk about, documentaries on beijing for air quality. 30, worldwide, most polluted city. india, 13 of the top 20 cities for pollution, india, we have qatar, bangladesh make the list for dirt yeast air in the world. think of delhi, top cities in india. pollution in 2012, nearly 4

million people under age of 60 lost their lives considered because of the air quality across the region. look at why this happens. terrain. exacerbates the issue. you have the tallest walls in world. banking up pollutants come into place. banked up against it there, traps it. we have stagnant weather patterns in place, the fog forms, a lot of fuel being burned in the winter months for heating purposes. they burn foliage, wood. looks look this. portions of india, guys, air quality is bad, akin to smoking several packs of cigarettes a day. >> there is not much you can do. >> no there isn't. >>en the short term. >> exactly. >> thank you for that. >> and thank you for watching cnn. i'm rosemary church. >> i'm errol barnett. and next, those in the states. for everyone else, stay tuned for "cnn newsroom."

>> have a great day.

the 2016 presidential race. it's just april 2015 and it's on. that is senator marco rubio launching his campaign. yesterday is over, he says. as far as he's concerned, yesterday is on the road. that is hillary clinton eating at chipotle. unnoticed. a burrito bowl. she is beginning her first official campaign event. we know she had beans and chicken in the bowl. >> how can you serve hillary clinton and not know it's hillary clinton? we'll discuss.