Thinking. Nightly news begins right now. Announcer this is nbc nightly news with lester holt reporting tonight from jerusalem. Good evening to our viewers in the west. Well get to israel in a moment. First there is breaking news in Manchester England where police are responding to reports of a serious incident with confirmed fatalities and injuries at the Manchester Arena where pop star Ariana Grande was holding a concert. Videos on social media show people panicked, running and screaming after witnesses heard loud bangs. Late details from london. Reporter lester, good evening. Tonight British Police are treating this as a terrorist incident and multiple u. S. Officials briefed on the investigation tell nbc news it looks like the work of a suicide bomber. [ screaming ] reporter terrifying moments and panic as an Ariana Grande concert in manchester was coming to an end. Reports of an explosion began pouring in at 10 30 local time. Police responded calling it a serious incident, urging people to stay away from the area. Concert goers rushing out, many adults leading children to safety and First Responders carrying the injured. Dozens of emergency vehicles rushed to the scene. Ambulances lined up outside the arena. In this dash cam video outside the venue, you can hear an explosion and see a glow on the left side of the screen. People seeking safety from a bloody and chaotic scene. Police have cordoned off a large part of the Manchester Arena which can hold 21,000 people, the largest indoor arena in the United Kingdom which also sits above the citys main train station. The uk has been on a severe Terror Threat alert since 2014 meaning an attack is highly likely. Tonight the arena said it happened outside the venue in a public space as people were leaving. Manchester police confirming that at least 19 people are dead, 50 injured making this the deadliest terror attack in the uk in over a decade. Lester . All right. Kelly, thanks. Now back here in jerusalem. A beautiful historic city and a complicated and troubled land and tonight President Trump is here calling for peace and getting a receptive ear as the face of a new american approach in the region. The president welcomed with full honors upon landing early today in tel aviv directly from saudi arabia. That flight was part of a historymaking day that took the president to the heart of old jerusalem and a sacred site no sitting u. S. President has visited before. Mr. Trump also made news with offhanded remarks that immediately refocused to troubles he hoped to leave at home. Chief White House CorrespondentHallie Jackson has our report. Here in israel, showered with praise by Benjamin Netanyahu, a striking contrast to form er president obamas welcome. And that wasnt the only difference. A moment of silence marking history at the western wall. Donald trump the first sitting u. S. President to visit the holy site, along with his family. The symbolic step, part of a tightly choreographed visit with the president sticking to the script, mostly. Never mention the word israel. Those off the cuff comments coming after the president was pressed about reports he shared sensitive intelligence gathered by israelis in this Oval Office Meeting with russian officials. With officials. I never mentioned the word or the name israel. Never mentioned it. Theyre all saying i did. So you have another story wrong. But the president is denying something no one accused him of. Prime minister Benjamin Netanyahu brushing it off. The two leaders and longtime friends on a first name basis. Donald. B. B. , thank you. Evidence everywhere of their warm relationship. We understand each other. To israelis, it also helps donald trump is not barack obama. I want you to know how much we appreciate the change in american policy on iran. That tough talk against iran central to the president s middle east message. There is a growing realization among your arab neighbors that they have common cause with you in the threat posed by iran. Similar language in saudi arabia this weekend in a speech to more than 50 arab leaders. For decades, iran has fueled the fires of sectarian conflict and terror. In riyadh, the Royal Treatment for trump and tel aviv, the red carpet rolled out, open arms for a president embattled at home looking for a win and hoping to find one overseas. Hallie jackson, nbc news, jerusalem. This is Andrea Mitchell in jerusalem. President trump dining with the netanyahus and tackling middle east peace, learning on the job. Ive heard its one of the toughest deals of all. Reporter realizing that a peace deal is harder than he thought only a few weeks ago. Its a something i think is frankly maybe not as difficult as people have thought over the years. Reporter on a trip filled with symbols, holy sites, royal welcome, sword dances, and a glowing orb, it is still a challenge just to get israelis and palestinians talking to each other. Instead today, anger in israel over a palestinian protest. The hostility decades deep on both sides. Today there was a strike to support palestinians in jail for killing israelis . Give me a break. You cannot. You cannot seek peace when you support terror. What they are trying to do is forge an agreement that will simply be shoved down the throats of palestinians. Reporter and donald trump with a new approach, hoping stronger relations with israel can produce small steps toward peace with the palestinians, not the comprehensive deal envisioned by past president s of both parties. If he can generate hope, thats a good thing. If he raises expectations and then they are disappointed, weve seen before that can lead to a real setback and more violence. Reporter and then fundamental to the trump vision, isolating iran and opposing its newly reelected president rouhani who a former chief says he wants reform. I think rouhani is a symbol of a chance, an option for change in iran. Reporter before leaving tomorrow, President Trump will go to bethlehem in the west bank and meet with the palestinian leader. A very brief meeting again, more symbol than substance. Lester . Andrea mitchell, thank you. As the president continues his trip abroad, the russia Investigation Continues to make headlines at home as former National Security adviser Michael Flynn says hes taking the fifth and not cooperating with a subpoena and there is word from a top democrat in congress saying he has documents that show flynn lying to investigators about money from russia. Nbcs Peter Alexander has late details. Reporter tonight, ousted National Security advisor Michael Flynn facing fire according to this letter from the democrat on the committee. Flynn appears to have lied to security clearance investigators by telling him he was paid by u. S. Companies when attending this gala with vladimir putin. In fact, the moscow trip was financed by russian state media. Flynn now planning to plead the fifth invoking his right against selfincrimination after a Senate Subpoena for personal documents. A source close to flynn telling nbc news, it would be highly imprudent to compile. I dont believe someone this high up in the food chain will be granted immunity at this point in time. Reporter President Trump during the campaign mocked those who refused to testify. You see, the mob takes the fifth. If youre innocent, why are you taking the fifth amendment . Reporter on capitol hill tonight, Vice President mike pence lasered in on the plan. Out tomorrow, the proposal for american greatness calling for sweeping cuts to entitlement programs, medicaid 800 billion slashed over the next decade and 190 billion from the food program called snap that fed 42 million Americans Last year. The Los Angeles Regional Food Bank bracing for impact. There is going to be a bigger hole in the budget and they need to find a way to fill that hole in some fashion. Reporter also targeted, Social SecurityDisability Insurance that benefits more than 10 million americans. When you look at the policy priorities and you look at their kind of magical numbers they are going to use for Economic Growth im very concerned this budget will make the fiscal situation worse instead of better. Reporter with a budget rollout looming and the russia investigation intensifying, two of the top advisors, Reince Priebus and steve bannon left the foreign trip early returning home back here to the white house. Lester . All right. Peter alexander, thanks. In maryland tonight, the fbi is called in to assist in the investigation with a black student stabbed to death, a white student charged with his murder. A seemingly random act of violence. Investigators are trying to determine if it was a hate crime and whether it was the most violent episode of race related incidents on college campuses. Here is nbcs tom costello. Reporter at the university of maryland, anguish and outrage at the stabbing death of 23yearold richard collins, set to graduate tomorrow from nearby Buoy State University and commissioned just last thursday as an army second lieutenant. His father spoke exclusively to nbc news. A parents Worst Nightmare just reached my doorstep. Reporter police say collins was waiting for an uber ride with two friends when a stranger, 22yearold student Sean Urbanski screamed at colins to move then allegedly stabbed him in the chest. Urbanskis Attorney Says alcohol and drug abuse may have played a role. A visibly upset University President paying tribute to collins during graduation. Who lost his life in a senseless and unprovoked assault. Reporter now the fbi is investigating it as a possible hate crime after urbanskis Facebook Page suggesting an affiliation with a White Supremacist Group called al alt reich. It shows bias against women, latinos, members of the jewish faith and especial li african americans. Reporter if true, the latest racial incident, university of Central Florida and iowa state. Since the election, civil Rights Groups tracked an increase in race related incidents on campuses nationwide. I really have not tried to process motive or, you know, intentions behind this yet. Reporter tonight in maryland, an outpouring of grief over the loss of a young man who was excited to begin serving his country. Tom costello, nbc news, college park, maryland. Jury selection began today in the Sexual Assault trial of comedian bill cosby. Cosby is accused of drugging and assaulting a former Temple University employee in 2004. Jury selection is taking place about 300 miles from the site of the trial outside philadelphia. Despite that, the process got off to a slow start when 86 of the 100 potential jurors interviewed had said they had previous knowledge of the case. Opening statements are expected june 5th. Still ahead, if you are putting off buying a hearing aid because they are too expensive, the proposed change that could save you thousands. And a terrifying viral video of a sea lion grabbing a girl and pulling her under water. We have the warning for every family this spring and summer. Were back now with news for the 48 million americans who suffer from hearing loss. Up to 85 of people that could benefit from a hearing aid dont use one. But there is a new push to sell hearing aids over the counter like reading glasses and could mean thousands of dollars in savings. Nbcs joe fryer has the details. Reporter Tony Saunders has been playing the bass since he was 14. [ tone ] very faint. Reporter now 61, a hearing test reveals its taking a toll. Saunders needs hearing aids but they can cost up to 4,000 each and usually arent covered by insurance. When you have to prioritize what youre going to spend money on, hearing aids dont make the list. It doesnt make the list. I have six kids and 13 grandkids that come before me and my wife. Reporter lawmakers are considering Bipartisan Legislation to create a new hearing aid category over the counter. More affordable for mild to moderate hearing loss. They could be available by 2019 if passed. How would you feel about that . I would be first in line. Reporter this malvina levy has mixed feelings. I dont want people to have Unrealistic Expectations about what its going to do for them. Reporter she worries patients will skip getting professional help and other inexpensive are available, personal sound amplification products. They are unregulated and cant be marketed for hearing loss. One of the concerns is the fit. If overthecounter devices were approved they would be regulated by the fda. Kathy thinks the need is great. Her nonprofit h. E. A. R. Educates about hearing loss. They arent getting the help they need and they cant afford it. Reporter for Tony Saunders and millions more, a less expensive overthecounter option could be music to their ears. Joe fryer, nbc news, san francisco. Were back in a moment with a new warning for parents about something you shouldnt be giving to your baby. And injuries. We turn to the terrifying moments for a young girl and family after she was suddenly dragged into the water by a sea we turn to the terrifying moments for a young girl and family after she was suddenly dragged into the water by a sea lion. Were hearing from the man that caught the scene on camera and his video serving as a warning for a lot of families heading to wharfs and piers along our coastline this summer. Miguel almaguer has the story. Reporter a day on the dock beginning with laughter turning to panic and fear. A 700pound sea lion yanking a girl into the water, snatching her off a pier in vancouver british colombia. Its reportedly her grandfather who jumped to the rescue, both safe but shaken. Michael captured the moment. I mean, its massive. Its pretty powerful and it is a wild animal, its pretty dangerous. Reporter the sea lion had been eating bread tossed in the water, a crowd watching it as it lunged. It could have been much worse. That little girl is very lucky it wasnt worse than what it was. They are incredibly powerful animals. They have big, big teeth, very powerful jaws. Reporter while violent encounters with humans are rare, sea lions can be aggressive, especially when food is involved. Signs are posted feeding them is illegal. What we saw in that video today was total stupidity. Dont go up to a bear in the forest and hand it a ham sandwich. Dont come to the dock and throw crackers at a sea lyon. Lion. Reporter experts say the family should come forward. Sea lions can carry harmful bacteria. The family is anonymous. The rom reportedly posting on chinese social media my little treasure is okay. All we lost were two pairs of sunglasses. A close call one family will never forget. Miguel almaguer, nbc news, vancouver. Now to a warning from doctors to parents, stop giving fruit juice to babies. In a new report, the American Academy of pediatrics says babies shouldnt have fruit juice for the first year of their lives changing the previous guidance for the first six months. Babies under a year old get no nutritional benefit from juice that could be loaded with sugar. When we come back, well have some final thoughts on this historic day in jerusalem. 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