on this tuesday night, breaking her silence. hillary clinton finally speaki out about her personal e-mail, d and what she says is off-limits. are expelled, frater brothers thrown out over a racist chant. now a new video clip. a house mother using the same slur. but she said it's not what it security risks. an nbc news investigation. hundreds of i.d. badges used t access secure area stolen from the nation's airports. and caught on camera. chilling video from a quiet town. a stranger snatches a toddler and runs off. tonight the children who gave chase, and the hunt for the kidnapper. "nightly news" begins now. >> announcer: from nbc news world headquarters i

this is "nbc nightly news." reporting tonight, lester holt. good evening. hillary clinton is not yet a candidate for president, but s may have gotten a pr of what the campaign trail cou be like, when she came face to face with reporters here in ne york. all hungry to hear why she used a personal e-mail account to conduct government business when the simple answer, mrs. clinto says, convenience. pointing out that she broke no rules and she has encouraged the release of her official e-mails. but what about those e-mails that she deemed non-official? what was in them and they deleted? andrea mitchell has a lot more for us. >> reporter: it was a media frenzy unlike anything ever seen at the u.n. a likely presidential candidate trying to quiet a firestorm by finally explaining why she used a private e-mail system while secretar. >> i opted for convenience to

use my personal e-mail account which was allowed by the state department because i thought it would be easier to carry just one device for my work and for my personal e-mails, inste >> reporter: after two weeks o stonewalling, hillary clinton acknowledged the fal. >> looking back, it would have been better for me separate phones, and two e-mai accounts. i thought using one device wou be simpler, and obviously it hasn't worked out that way. >> reporter: she said she has turned over all work related e-mails, 55,000 pages to the state department. but deleted personal e-mails. >> the server contains persona communications from my husband and me, and i believe i have m all of my responsibilities, an the server will remain private >> reporter: her examples all deeply personal. >> at the end, i chose not to keep my private personal e-mails. e-mails about planning chelsea wedding, or my mother's funera

arrangements, condolence notes to friends. as well as yoga routines. >> reporter: it lasted 20 minutes, taking 10 questions. >> can you explain how you decided which of the p e-mails to get rid of, how you got rid of them and when? and how you'll respond to questions about you being the arbiter of these? >> i had no reason to save the but that was my decision, because the federal guidelines are clear, and the state department request was clear. >> reporter: and what about hacking? >> the system we used was set for president clinton's office. and it had numerous safeguards. and there were no security breaches. >> reporter: the leading democrat who had urged her to talk is now satisf >> the important thing was tha she stepped forward and talked to people. and i think people will be reassured listening to it. >> andrea mitchell and chuck todd, nbc news political director and moderator

the press" join me. andrea let me first talk to you. the democrats wanted her to come out and speak today. what is the early read from >> the early read is negative. rand paul is going to be speaking out lat. trey gowdy is the republican chair of that benghazi investigating committee. he said not only didn't she answer the questions, he wants her to turn over the server to a neutral party, and he says he will call her at least twice to testify before his com. >> what does it tell you about her future? >> that's the thing here. let's talk the obvious observation here, she's runnin for president. she wouldn't have done this press conference here -- >> she wouldn't do it otherwise. >> if she wasn't going to run for president, she wouldn't have done this press conference. the politico lead today really nat. hillary rodham clinton's presidential campaign started terms set by her adversaries. that itself tells you this wil be a long, hard slog.

i thought today she did the bare minimum as far as democrats are concerned, but she didn't satisfy her media critics and she certainly didn't satisfy her republican critics. which means this is going to be a typical clinton campaign. >> thank you. sparking outrage throughout the country today, university of ok two students after video emerged of fraternity members engaging in a racist chan now a new video clip has surfaced that is only provokin further outcry. we've got more from nbc's gabe gutierrez who is on the campus >> reporter: it is the chant that shocked the country, and tonight one of the students involved has been iden. the student pumping his fist i parker rice, a university of from a jesuit prep school in dallas last year. >> i'm not only appalled, but i'm saddened and hurt that we'

with issues of racism and bigotry. >> reporter: ou expelled two students but won't name them citing privacy laws. >> we're just not going to let this define the university and we're going >> reporter: now this short clip posted online showing the long-time house mother for sig alpha epsilon at ou using the same racial slur. in a written statement, she sa she is heart broken racist portrayal. she does not tolerate any form of discrimination, and she was only singing along to a rap song. today at the sae house, member rushed to move out before the midnight deadline. the fraternity shut down, leaving its cook without a job. online, donors have raised abo $50,000 for him. >> reporter: jonathan davis said he was the first african-american pledge ever a sae's ou chapter in 1999. >> that house has turned into a symbol for modern-day racism. >> reporter: we spoke with an senior who asked that we not u

her name or show her face because she didn't want to be associated with th. she says she heard the same chant on a bus two years ago at an sae date party. >> i would definitely say it's not an isolated incident. >> reporter: tonight the fraternity's national headquarters says it is investigating those claims. but any suggestion this chant was a tradition is. another student rally is plann here on campus later tonight. the university says its investigation is not over, and that more students could be disciplined. lester? >> gabe gutierrez, thank you. in the trial of the allege boston marathon bomber, for th first time today we at what investigators say dzhokhar tsarnaev scrolled inside the boat where he hid just before his ca tsarnaev may have believed tho would be his final words in th last moments of his life as police closed in. nbc's pete williams was in the courtroom. >> reporter: four days after t marathon bombing, police discovered dzhokhar tsarnaev hiding in a boat stored in a

watertown backyard. it was clear he had been injured, shot several times. pictures revealed publicly tod clearly show that the boat was riddled with police gunfire. they show three sections streaked with tsarnaev's blood with at least 21 bullet holes visible. his older brother tamerlan die earlier that day during a poli shootout. in pencil he wrote, i'm jealou of my brother who received the reward of paradise, god willin before me. god has a plan for each person. mine was to hide in this boat and shed some light on our actions. he criticized u.s. military operations in the muslim world and said, you are fighting men who look into the barrel of your gun and see heaven. the judge adjourned court earl to go look at the boat in fbi custody for himself, and is no deciding whether to let the ju see it, too. pete williams, nbc news, boston. it is supposed to be one o the most protected addresses i the world, now the white house has a new security

that the secret service must face after several high-profil missteps over the last year. the potential threat from drones. turns out the agency has been quietly running tests while the rest of us are sleeping. we get more from nbc's peter alexande >> reporter: for the last several weeks around washingto the secret service has been testing how to defeat the threat of an unmanned drone. the effort in response to a frightening episode last january when this drone crashed on white house property, triggering a . >> you have now a device that can transport both surveillance technology and explosives that's commer available. >> reporter: details of the secret service's tests are classified but experts say these are the best options. if a rogue drone zeros in on t white house, they can block the radio signal they could shoot it down but risk detonating an explosive or hitting people. the most complicated defense, hijacking the drone.

this experiment conducted by researchers at the u texas shows how they hacked a drone's gps, forcing ground. >> i think the secret service has a lot on their hands if they're going to protect the white house from threat of eve these commercial dro >> reporter: another challenge in heavily populated washingto d.c., figuring out how to disable a drone without using another device with other frequencies, like car navigati systems, smartphones, even planes at nearby reagan airport. >> unless you put up a giant net, there's no foolproof way we'll be able to stop every single drone someone c >> reporter: no word how long the secretive tests will last federal agents try to prevent a midair intruder. peter alexander, nbc news, washington. we want to update you on t condition of the u viciously attacked in south korea. he's now out of the hospital. five days ago an attacker yelling about korean unificati slashed mark lippert in the face an lippert had 80 stitches removed from his face before being

discharged. he has more rehab to do but wa upbeat about his rec >> i feel pretty darn good. all things considered. i mean, it was obviously a scary incident. but i'm walking, talking, holding my baby, you know, hugging my wife. so i just feel really good. >> questions remain how the attacker got so close lippert. he had only one full-time bodyguard assigned to him who was unarmed at the t south korea's capital has been considered a low threat. in argentina, reality show production went horribly wrong when two helicopters collided in midair killing ten people the two pilots and eight french nationals, including three of that country's most prominent athletes. both choppers were part of a t survival show shot argentina. the cause of the crash is not yet known but the french are opening a manslaughter investigation into the acciden now to an nbc news investigation. the tsa today said it is

considering a new range of measures to stop the wrong people from getting into high security areas. but at our nation's busiest airport, hundreds of i.d. badges, the ones that gr access to those areas, are already missing. scott friedman from our nbc station kxas in dallas has the report. >> reporter: at airports across the country, thousands of workers use i.d.s that let the in through a side door, skippi security. now an nbc news investigation finds hundreds of thorks i.d.s have gone missin >> because of your employment, you are in a very, very critic position that can mean the lif safety of individuals, or aircraft, our nation. >> reporter: nbc news requeste records from some of the nation's largest airport america's busiest, atlanta, sent us this letter saying more than 1,400 i.d.s were lost or stolen over approximately two y before we could get the number from other airports, like

dallas-ft. worth, the transportation security administration stepped in and said, we couldn't have that information. the tsa says it's security sensitive. but police reports from dfw airport show crew uniforms go missing, too. even a federal flight deck officer's credentials and badge, which allow a pilot to carry a gun on a plane. >> every employee that receives a badge is required to report that badge is either lost or stolen. at that point, it's immediatel deactivated. >> reporter: still, some security officials fea with stolen i.d.s could sneak and open perimeter gate or hop fence and may be less likely t stand out on the tarmac. atlanta airport officials say missing badges do not pose a significant security threat. because i.d.s have employee photos and require a p.i.n. to get in. the tsa is conducting a nice wid wide review of security looking for ways to make them more secure which may include

i.d. checks at the door to help protect the more than 600 million who fly each year. scott friedman, nbc news, dallas. over the last fou days, ma of us have finally felt this brutal winter start there are huge reminders of it washing up on the beaches of cape cod. take a look at these massive hunks of ice and snow, some of it bigger than buicks now rest on the sand. they form out in the cold open water, and are brought in by the tide. but these warmer temperatures are already starting to melt them. still ahead tonight, the moment every parent fears, a stranger steals a toddler and runs off, his attempted getawa caught on tape. the verdict is in on a trial over one of the biggest hit songs of the decade. songs of the d introducing aleve pm... the pm pain reliever. that dares to work all the way until... [birds chirping] the am. new aleve pm.

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no parent ever wants to think it could happen to their child, an abduction in broad daylight from a place many people with consider perfectly safe. in washington state tonight, police are hunting for a suspected kidnapper who might have gotten away if it wasn't for the victim's siblings and it was caught on tape. we get more from nbc's joe fryer. >> reporter: surveil video from a smalltown grocery store captures the heart-pounding moments. a suspect running away with 22-month-old owen. ten seconds later, the boy's 8-year-old sister is seen sprinting after them then the boy's brother pushing the stroller in which owen had been sitting when he was taken.

dorothy saw owen's sister running and screamer. >> i'm holding her trying to find out -- he said he went thataway. >> a man grabbed a 2-year-old baby child and was running with it. >> reporter: after others joined the chase, the suspect put owen down and kept running. the boy is now safe with his parents. daughter got some lungs. i think there's no one in that town that didn't hear her. >> the little girl did what she was supposed to do which is run after him, yell scream and draw attention to herself. >> reporter: the three kids had been staying with a babysitter. deputies say they were playing in the park unattended when the suspect, a stranger started talking with the kids before grabbing owe >> he was like i'm 19 years old, and i watch kids all the time. >> it looks to me like a random act of trying to abduct a little boy. >> reporter: stranger abductions are incredibly rare. they hope to catch the man before he strikes again. joe fryer, nbc new

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it was a song of 2013 but blurred lines isn't winning any points for originalality in a court of law, that is. a jury ruled that the men behind blurred lines copied it from the 1977 marvin gaye song got to give it up. the jury awarded gay's children $33 million. pharrell said he came up with it in about an hour in 2012. fast food as we know it may never be the same. there are reports tonight that mcdonald's is thinking about

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raising young children. a hard-working school administrator, for ten years he's also been part-time mayor of tiny prospect park new jersey. but mayor muhammad leads a double life that takes him to one of the most dangerous places in the you heard the cries all the wa >> i could relate with the people particularly the children. >> reporter: he was himself a small child when his family immigrated to america from aleppo. from that war zone he's gone back five times in three years, discovering the struggle to survive aerial bombs has driven some of aleppo's children undergroun >> this area we're going down to is designed to be a bomb shelter. >> reporter: in a cellar these girls are studying english despite poor ventilation. >> one of the girls, she said they could bomb us as much as they want. we will continue to pursue our ed

>> reporter: it was seeing how much the children wanted to learn, despite war, hunger and the winter cold that convinced the mayor to start a foundation using social media to raise $300,000 so far, supplying a growing network of underground schools, despite his own risk hoping more of us will care about the suffering of aleppo's children. >> when you see the smile on a child's face that's what it's about to me. you know? making a difference in the lives of those who nobody else cares about. >> some people would say you're a hero. what would you say? >> i'm just a servant with a purpose. >> reporter: a servant keeping hope alive for the future of syria. ann curry for nbc news, prospect park, new jersey. and that will do it for us on this tuesday night. i'm lester holt. thank you for joining us. and by the way, we know you can't always be with us at this time that's why we're always available on demand. have a good night, eve

lights, camera, access. i wanted to let all you guys know. >> did he attempt suicide twice? >> new disturbing video. and the nick gordon moment only we can show you. i'm billy bush. plus it's come plit kated. the whitney