Everyone that this major breach has exposed. When you delete something, doesnt mean its gone. And drawing power, the new superhero helping kids with autism embrace their own inner strength. Night news begins now. From nbc news World Headquarters in new york, this nbc nightly news with brian williams. Good evening. Im kate snow in for brian on this labor day holiday. Brian will be back tomorrow. As americans wrap up summer vacations and return from the long weekend, a growing number of International Hot spots are demanding attention tonight. From iraq and syria to libya and ukraine. This weekend there were dire warnings about the power and reach of the Extremist Group isis with one world leader saying it wont be long before they reach american soil. Today, the british Prime Minister called for measures to stop the flow of new recruits to that group. While the u. S. Military continues its campaign to weaken isis, some democrats are criticizing the Obama Administration for not doing enough. We begin tonight with our senior White House Correspondent chris jansing. Chris, good evening. Reporter good evening, kate. Pressure is building for president obama to take quick Decisive Action against isis. A key concern, the more than 100 americans who have gone to syria to fight with isis and other Extremist Groups. Im not asking for the moon. I just want a good deal for american workers. Reporter a fired up president obama with a get out the vote message at a labor Day Celebration in milwaukee, a rare respite from escalating concerning over the threat of isis. And the escalating bipartisan pressure to take action soon. This is a vicious, vicious movement. And it has to be confronted. Reporter while the president talked up the economy, in Great Britain where the terror alert is at its highest level in five years. As to speak passports are not an automatic right reporter Prime MinisterDavid Cameron with fears of a western citizen radicalize then head to iraq or syria to fight and train. Hes proposing new rules for seizing the passports of suspected militants. It is abhorrent that people who declare allegiance elsewhere are able to return to the United Kingdom and pose a threat to our national security. Reporter King Abdullah of saudi arabia warned over the weekend if isis is ignored im sure theyll reach europe in a month and america in another month. French officials this weekend arrested a 16yearold girl trying to board a plane to turkey allegedly to join isis. U. S. Officials now estimate more than 100 americans have already joined the ranks of isis and other Extremist Groups. Fewer than many european countries, but enough to trigger alarm bells. Im very concerned. Because we dont know every Single Person that has an american passport that has gone and trained and learned how to fight. Reporter white house officials caution there is no intelligence suggesting an imminent threat here. Even as isis ratchets up with an effective Propaganda Campaign releasing this video of a takeover of a syrian air base. And the military battle against isis in iraq is expanding. Bombs were dropped by u. S. Warplanes breaking a weeklong siege for 15,000 people. U. S. Jets with humanitarian air drops along with drops from australia, france and the uk. Later this week the president will work to get more countries on board to challenge the isis threat at the nato summit in wales. Now, nato summits of late have been sleepy affairs. One defense secretary is known to bring along crossword puzzles. But not this year. The president will be looking to bring a coalition to deal with isis. As well as escalating crisis in ukraine. Chris jansing at the white house tonight. And ukraine is where we turn next. To talk about russias apparent invasion of that country, Vladimir Putin himself seems to be upping the ante to see how far he can go to keep a grip on ukraine without triggering a wider conflict. Nbcs keir simmons reports tonight from eastern ukraine. Reporter four months of bitter fighting in this corner of europe, now dangerously close to what ukraines president calls the point of no return. Full scale war because of what amounts to a russian invasion. Thousands of fallen troops and hundreds of foreign tanks now on the territory of ukraine. Reporter ukraines forces have been winning breaking the grip of prorussian rebels in eastern ukraine. But now with russian help the rebels are pushing back across a broad front. The clashes on land and sea with the ukrainian coast guard coming under attack. For now the u. S. Is responding with tough talk and the threat of more sanctions. The presence of russian soldiers on ukrainian soil is completely unjustified and unacceptable. Russia appears to be trying to force ukraine to abandon its democratic choices at the barrel of a gun. Reporter but so far russian president Vladimir Putin remains unmoved. Talking of statehood for eastern ukraine. Voicing support for the rebels. Even denying that his forces are on ukrainian soil though satellite pictures released by nato appear to show just that. But on the ground here wars the reality. Two and a half thousand people have been killed so far and many fear ukraine is on the brink of far more bloodshed. Trying to prevent more conflict, the west has avoided calling for putins action an invasion, World Leaders hoping to diffuse this crisis before it spirals out of control. Keir simmons, nbc news, eastern ukraine. It was a Surprising New video that went viral over the weekend putting libya back on the radar. It shows rebels who stormed part of the u. S. Embassy compound in tripoli. And it comes nearly two years after islamic militants launched a deadly attack on the u. S. Consulate in benghazi. Another reminder that libya is spiraling out of control. The story tonight from nbcs bill neely. Reporter in a country freefalling into chaos, libyan gunmen celebrate. Theyve just taken an american diplomatic compound, so they take to the swimming pool. A symbolic moment they want the world to see. Nbc news cant authenticate this video, but the u. S. Ambassador to libya says it appears to show a residential annex. The homes like the main Embassy Compound were abandoned quickly last month. All u. S. Staff safely evacuated as fighting intensified. The gunmen control the annex, the main u. S. Embassy nearby, says the ambassador, remains secure. For now. But these men are allies to islamist militias. This takeover an uncomfortable reminder of the killing of ambassador Chris Stevens and three other americans in benghazi almost two years ago. Tripoli is now a deadly battleground. The government has fled conceding yesterday its lost control of the capital to militias. The airport a symbol of a country in crisis. A country now further enflamed by air strikes from gulf states and egypt. Protests are growing. Libya is in turmoil. Rival governments, hundreds of militias and for the second time in two years an american compound overrun. Another Foreign Policy headache for washington is looming in libya. Bill neely, nbc news, london. Back here at home a big story this Labor Day Weekend continues to be the weather. Its been a washout for millions from the midwest to the northeast. Severe storms downed trees and knocked out power to thousands. Torrential downpours and in some areas hail, even confirmed tornadoes in massachusetts and michigan. Tonight, the threat continues and Weather Channel meteorologist kelly cass joins us with more. Good evening, kelly. Good evening, kate. That was a confirmed tornado near worcester, mass, yesterday. Today it was near gaylord, michigan, causing damage in the northern part of that state. Still on look out for detroit, cincinnati, st. Louis and springfield. The tornado threat is still there although diminishing as we go through the overnight hours. The main threat will be damaging winds and large hail. You may have noticed the warmth and the humidity has been on the increase on this labor day across the east coast. That will help to fuel showers and thunderstorms, some of which could be severe as we head back to work tomorrow. So watch that travel across the new york state throughway down through pittsburgh, charleston, west virginia, the main threat will be damaging winds as well as large hail. But we cant rule out the possibility of isolated tornadoes. This just in, we have brandnew tropical depression just formed in the sthern gulf of mexico. Good news, its not going to impact the united states. Its expected to head westward into mexico. Kelly cass tonight. Thanks. The fallout continues after a hacking attack involving some very personal intimate photographs of celebrities including oscar winner Jennifer Lawrence. They were posted online for all the world to see. Its not just an embarrassing breach of privacy for the stars who were exposed, its also highlighting the risks for anyone who takes pictures on a phone. We get our report tonight from nbcs jacob rascon in los angeles. Reporter Jennifer Lawrence is one of the biggest names in hollywood. But overnight the young oscar winner took center stage for a different reason after dozens of nude and risque photos of the actress appeared on an Anonymous Online image sharing site. With them similar photos reporting to show kate upton, rihanna and arianna grande. And more than 100 other famous women in what many call the biggest celebrity hacking ever. Its a scenario like the one shown in the comedy sex tape in which a private video goes viral after getting lost in the cloud. It went up to the. You cant get it down from the cloud . Nobody understands the cloud. Reporter whats alarming many is how the identified hacker claims he got the pictures, through the apple icloud, which use servers like these to backup the digital lives of hundreds of millions of people. We caught up with former federal cyber crime prosecutor mark rash at a Computer SecurityConference Today in sweden. By storing it on the cloud it becomes a onestop shop for hackers. Hackers only have to break in one place to get everybodys data. If the celebrities are vulnerable, it means that everybody is vulnerable on the cloud. Reporter late today the fbi said it was aware of the issue and looking into it while apple said, we take user privacy very seriously and are actively investigating this report. Publicists confirm saying flagrant and outrageous violations of privacy. Some celebrities say the photos are fake. While actress Mary Elizabeth winston tweeted to those of you looking at photos i took with my husband years ago in the privacy of our home, hope you feel great about yourselves. Another reminder that privacy is one click away from public scrutiny. Jacob rascon, nbc news, los angeles. There is medical news tonight about an experimental drug showing promise in protecting against Heart Failure. In fact, its being referred to as potentially one of the greatest advances in protecting against Heart Failure in a quarter century. In Clinical Trials the drug cut the risk of death or hospitalization due to Heart Failure by 20 . The Company Behind it says it could be on the market as soon as next year. Weve put more detailed information on our website, nbcnews. Com. Joan rivers remains in a new york City Hospital tonight. Latest statement from her daughter released yesterday thanked fans for their love and support saying the family was keeping our fingers crossed. But it did not reveal any update on her condition. The 81yearold comedy icon was rushed to the hospital on thursday after sources say she stopped breathing during a procedure on her vocal cords at an outpatient facility. Still ahead tonight, combatting the exploding heroin epidemic in america. An amazing update on one mother desperate to get help for her son and what has happened since. And later, the downfall of a boardwalk empire. Big worries tonight on the beach. Dwalk empire. Big worries tonight on the beach. Im on expert on softball. And tea parties. Ill have more awkward conversations than im equipped for, because im raising two girls on my own. Ill worry about the economy more than a few times before theyre grown. But its for them, so ive found a way. Who matters most to you says the most about you. At massmutual were owned by our policyowners, and they matter most to us. Ready to plan for your future . Well help you get there. 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Mom, debbie, was holding onto memories. A sweet birthday card dan once wrote for her. I know hes going to fade again. Reporter his mom frantically searched for a rehab bed. When she finally found one close to home, dan threatened to run away. Hes saying im leaving, im out of here. The adrenaline shot through my body, my heart started beating, my stomach sank. I broke out in a sweat. Reporter what did you say . I said, dan, you really have three choices here. You can stay where you are. If you step off the property, i can have you arrested. Or you can run away. Reporter so how are you doing . Im good. Im just taking it day by day. Reporter dan said something finally clicked here at cross keys retreat, a group home founded by two former addicts. Ive relapsed multiple times, but the last time was just the final straw. Reporter for almost everyone here heroin was the drug of choice. How many people are still worried that they might relapse even after this . Very honest. Thank you. Its dans sixth attempt at quitting heroin. Is there a difference this time . Yeah, i genuinely want to stay sober right now. Reporter the price tag for a onemonth stay here is about 8,000. Thats less than most. Many facilities charge more than 40,000 for a 30day program. And insurance often doesnt cover much. An ebay business is debbie and davids only source of income now. And paying for dans treatment is a strain. But they refuse to give up on him. Dan saw for the first time what his mother said back in april. Im not ashamed of my son. Im proud of my son. And there is nothing i wont do to make sure that i give him every shot at recovery. Reporter i just wonder how you felt when you hear her say that . Im blown away by the love that she has for me. The guilt for what ive done. And the only way i can show her that im truly sorry for my behavior is by getting better. At the end of the day thats all she wants. Reporter debbie is thankful. 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