Headquarters in new york this is nbc nightly news. Reporting tonight, lester holt. Good evening. Days after his stunning 11th Hour Campaign declaration that there would not be a palestinian state in his watch, netanyahu had an interview with Andrea Mitchell that is drawing a strong response from the white house. Fresh off his election victory, netanyahu tried to explain last minute comments he made. From jerusalem, andrea tells us what hes saying now. Reporter it was Benjamin Netanyahus last Minute Campaign promises when he thought he might lose to set off the firestorm, promising to prevent a palestinian state, stung by a Furious White House reaction today he tried to walk it back. I havent changed my strategy. I want a sustainable twostate solution, but for that circumstances have to change. Reporter but you were reelected on the mandate, certainly israeli voters believe you were reelected on a mandate against a twostate solution. That is the way the white house is interpreting it. Well, first of all that state would become a terrorist state. So we need the conditions of recognition of a jewish state and Real Security in order to have a realistic twostate solution. Reporter but it was his election day warning. One wrote he ran as a bigot. Netanyahus response . First of all, im very proud to be the Prime Minister of all of israels citizens arabs and jews alike. Reporter thats not the way it sounded on election day. I was calling on our voters to come out. Reporter today the white house wasnt buying the explanation. I think it is a cynical tactic and theres no doubt that it is divisive. And it is an attempt to marginalize arabisraeli citizens. Reporter why should president obama trust you when you came to congress to lobby against his negotiations with iran . I think theres an unbreakable bond between the United States and israel. Reporter what about you and barack obama . We have differences. But we have so many things that unite us. Reporter has he called you yet to congratulate you on your victory . Im sure he will be speaking to me soon. Well have to. Reporter in fact president obama did call netanyahu to congratulate him, but the president said in private exactly what the administration has been staying in public raising the point of their reassessment of policy because of what netanyahu said about a palestinian state and pointedly bringing up what netanyahu said about israeli arabs. So though is still an administration in trouble. By now you may have seen the disturbing video of an honor student struggling while being arrested on a street. Authorities have opened a criminal investigation amid a growing uproar. What were trying to understand is the events leading up to the struggle. Gabe gutierrez is in charlottesville searching for answers. Reporter this video, obtained by the university of virginia Student Newspaper shows officers arrested third year student martese johnson. Thats johnson on the ground yelling. In virginia the state enforces liquor laws and agents say that 20 year old johnson a member of the Honor Committee was detained after being denied entry to the bar. According to the arrest warrant, johnson was agitated and belligerent and is now charged with obstruction and possible lick public intoxication. Johnson, who received ten stitches after his arrest addressed the crowd. Were all part of one community. [ applause ] reporter even the universitys president had strong words. This is not something that should ever happen. I dont know why it happened. Reporter today outrage on campus. No matter what we do no matter how smart we are, no matter how we act, how we dress and talk we are still seen as black people. Reporter the governor ordered an independent police investigation. As a parent i speak for all the parents. Those pictures are very very disturbing. Reporter with johnson by his side his lawyer spoke out today. Marr tease has received an outpouring from Community Members and even perfect strangers. Reporter and the attorney stressed that johnson did not provide a fake i. D. At this bar. Last year the state reached a settlement with a uva student after the water she bought was mistaken for beer. Now the tale of the tapes of the secret service. A barrage of questions about the latest scandal involving two top agents. Joseph clancy told lawmakers that its possible some of the Surveillance Video from the night in question was taped over. Kristin welker has details. Reporter senators pressed secret Service DirectorJoseph Clancy on whether his agency erased surveillance tapes from the night of the latest scandal. Clancy acknowledged there is at least one missing camera angle. That camera angle we do not have and thats what were going to go back and hopefully be able to capture. Reporter this after lawmakers complained there were only two tapes of the incident when two secret Service Members drove onto the grounds after an investigation. That tape should be preserved so i am concerned. Reporter the supervisors that night allegedly allowed the two agents to go home without take ago breathalyzer. Today clancy who was not told of the incident for five days explained surveillance tapes are routinely taped over but says he understands the suspicion. We dont have a system where somebody can erase tapes. But they are by practice in 72 hours tape over. And i know thats a concern. Reporter at this intersection where the incident occurred there are at least ten cameras visible to the naked eye. Whats not clear is if theyre always recording or operated by the secret service. Clancy vowed changes. It undermines my leadership and i wont stand for it. Reporter one change . Installing a new fence after a man with a knife made it inside the white house last year. Kristin welker nbc news the white house. Dramatic images revealed today for the first time at the Boston Marathon bombing trial, showing the power of a bomb that prosecutors say the tsarnaev brothers threw at police three days after the marathon attack. Pete williams is covering the trial for us. Reporter during the intention shootout with the tsarnaev brothers in watertown, Dzhokhar Tsarnaev threw a Pressure Cooker bomb at the police. It exploded with such force the fbi says that a huge piece flew into this nearby car, penetrating more than halfway into a rear door. The name of the company that made the Pressure Cooker is clearly visible. And testimony revealed its the same brand of the Pressure Cooker set off three days earlier at the finish line. It land here and brew up with pieces found as far as a brock away and embedded into the houses on both sides of the street. And the fbi says the lid of the Pressure Cooker was actually found on the other side of this house in the corner of a side yard. Thats the lid the fbi says where it landed on the grass. The lock for the Pressure Cooker lid was found stuck in the front wall of a house. Prosecutors also say the tsarnaev laptop computer contained instructions for making Pressure Cooker bombs. With the death toll rising on yesterdays tunisia massacre we get the story from katie tur. Reporter in tunis today, funerals and a National Museum scarred with bullet holes after gunmen opened fire onion suspecting tourists killing at least 23. Officials have made nine arrests and isis claimed responsibility for the attack, though it offered no evidence. Posting online that the attackers used automatic weapons and grenades. Islamic state wants us to think that it now has a franchise in west africa here in north africa its spread into south asia as well. But this is all based on propaganda. Reporter tunis is still shaken by the images of terrified visitors rubbing for their lives, some carrying small children. Many of the visitors had just arrived on a mediterranean cruise. This woman was traveling with her husband. Australian Xavier Camilo was killed alongside his mother. A spanish man and his wife were still hiding inside the museum paralyzed with fear. Juan Carlos Sanchez says he saw one person shot. Today tunisians were defiant, saying they wont be intimidated. But as survivors embraced and left for home there were nagging fears that terrorism is taking deeper root. Katie tur, nbc news london. Authorities in japan say theyve arrested a man accused of making phone calls threatening u. S. Ambassador caroline kennedy. She attended a series of events today with First Lady Michelle Obama who is on a tour of asia to promote the education of girls. Want to turn now to the investigation into robert durst, charged with murder and the question of whether there could be more to this than first thought. Weve learned that the fbi is working with local Law Enforcement to determine if he could have links to missing person cases in places where hes been. Stephanie gosk has that report. Reporter the investigation did not end with his arrest. In fact it may have grown even wider. Federal Law Enforcement sources say theyre working with police on cold cases in several cities like the is the 97 disappearance of Karen Mitchell in eureka california. The real estate heir owned property in multiple states and moved frequently. In the hbo documentary the jinx he mutserred. Killed them all, of course. No ones labeled robert durst as a serial killer. If this is true you have a mobile killing pattern. You need to talk to the detectives in eureka and new york. Reporter confronting him with the evidence that already exists could be a chaej. If the case relies on the handwriting comparison at the center of the hbo series. A note stoebts susan berman and a note sent to police. Handwriting analysts determined durst did write the letter to police. But earlier in the investigation, a different analyst pinned it on someone else. Handwriting analysis has been really questioned in the courts lately. And i think the science underlying it is seriously suspect. Reporter tonight durst is in a mental facility on suicide watch. The murder trial is likely a long way off. His case far from shut. Stephanie gosk new orleans. We la have more on it on a special edition of dateline. A billion dollar drought emergency relief bill in california. A vivid example of what this extreme heat is doing, a heat wave cooking away the poppies in the antelope valley, blooming just days ago, now shrivelled and dead. Theres a big snowstorm about to hit on the eve of spring. Right now its all rain. But as low pressure developed along the coast it will pull in colder air, and this system will produce snow beginning around pennsylvania and upstate new york around 9 00 tomorrow morning and spreading through pennsylvania philadelphia new york through the evening compute on friday. Boston it looks like you barely escape this storm with an inch or less of snow. But generally were talking 3 to 6 inches as winter just wont give up. Still ahead tonight. Its totally free. Just aboutesque clicked on it. But are you unknowingly giving away your private information. Up next the stunning results of our investigation. Also can you name the man on the 20 bill . Well talk about the growing vo maggie wasnt thrilled when ben and i got married. I knew itd take some time. And her sensitive stomach didnt make things easier. It was hard to know why. The move. Her food. . So we tried purina cat chow gentle. Because its specially formulated for easy digestion. Shes loved it ever since. And as for her and ben. Shes coming around. Purina cat chow gentle. One hundred Percent Complete and balanced for everyday feeding of adult cats. Doing this all day, my feet and legs got really tired. So i got dr. Scholls massaging gel work insoles. They absorb the shock of working on my feet all day. I feel energized im a believer. Dr. Scholls massaging gel work insoles. Im a believer the real question that needs to be asked is what is it that we can do that is impactful . What the cloud enables is computing to empower cancer researchers. It used to take two weeks to sequence and analyze a genome; with the microsoft cloud we can analyze 100 per day. Whatever i can do to help compute a cure for cancer, thats what id like to do. Ufferers. One tried the newest allergy spray which could take several days to feel the full effect of relief. The other took claritind which starts to work on allergies with nasal congestion in 30 minutes. The moral . Nothing works faster than claritind. Nice grreat a shot like that. Calls for a postgame celebration. Share what you love with who you love. Kelloggs frosted flakes. Theyre grrreat weve got a warning for anyone whos clicked on a free wifi site. But if you log onto the wrong wifi hot spot could you be giving seeker criminals the keys to your computer your identity even your bank account. Heres tom costello. Reporter its a constant risk in our 24 7 on the go society, staying connected but still protected. Cyber criminals are waiting to pounce setting up fake wifi hot spotting right next to real wifi hotspots. They are huge problems. People are connecting to these sites. And they dont know whos on the other side. Reporter a security chief set up his own hotspots across new york offering free public wifi. Within minutes, 391 people were connected at jfk airport. 768 in brooklyn. 2,341 people connected to his wifi, surrendering control of their devices and identities. And those little padlocks you assume means secure not so much. All that really says is that its encrypted on the way to the cyber criminal me. Reporter when he offered cyber access for 2. 100 people handed over their credit card information. We asked how easy it is to set up a trap. I hit enter. And immediately. The information pops up over here. I can see your name email and password and credit card details if you are providing them. Reporter already. Instantly. In real time. Reporter so how can you protect yourself . Use a wifi that you know is trustworthy. Avoid paying for hotspots and keep your Security Software up to date. Carelessness will only line the pockets of cyber criminals. Were back in a moment with big surprises as a nati i have a cold with terrible chest congestion. I better take something. Theraflu severe cold doesnt treat chest congestion. Really . New alkaseltzer plus day powder rushes relief to your worst cold symptoms plus chest congestion. 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