Williams. Good evening. It has already crippled a big company. Its cost a major studio a major motion picture. And its had a terrible cost to privacy. And while the electronic attack on Sony Pictures goes on, federal officials are pointing right at the source. They say the attack was launched from inside north korea. It raises huge questions about vulnerability and national security. And its where we begin tonight with our justice correspondent pete williams. Pete, good evening. Reporter brian, good evening. U. S. Officials tonight say they now believe the attack was launched inside north korea then rooted through computer servers in taiwan to take advantage of faster computer surrogates in the outside world. But theyre still unsure about whether there was outside help in designing the attack. Security analysts say even though north korea has a force of nearly 6,000 people assigned to do cyber attacks, its previous attempts have been primitive. Now they say the nature of the attack and the stolen emails into known website of hackers suggest North Koreans were behind the attack. Now theyve done something quite sophisticated just abruptly out of nowhere. So how did they suddenly acquire that capability . Its hard to imagine how they could do it without outside help. Reporter even so, u. S. Officials say they found no definitive sign that sony insiders were involved. Officials say this attack may have began months ago and bounced all over rooted through a series of servers to disguise the origin. If it was launched by north korea, how to respond . The Obama Administration says the attackers may be itching for a reaction. Sophisticated actors when they carry out actions like this are oftentimes, not always, but often seeking to provoke a response from the United States of america. Reporter responding in kind with a cyber attack might not be effective because north korea doesnt have much of a cyber footprint. Theres no backing structure in north korea. So it wouldnt do any good to go after those. North korea already suffers major Power Outages on a daily basis. Reporter a country that mounts an attack over a movie, it looks weak. If this is north korea, it is silly that they would engage in war because they dont like a movie. Reporter more definitive information about the source of the attack comes tomorrow. Pete williams. Reporter this is joe fryer in hollywood where billboards promoting the interview are coming down. To many entertainers its an uneasy surrender. Personally i think allowing a ruthless dictator of can and cant see is in our own country is against what we stand for, right . Reporter from rob lowe, wow, everyone caved. The hackers won. An utter and complete victory for them. While ben stiller is calling the movies cancellation a threat to freedom of expression. One thing they shouldnt do is throw up their hands and say, okay, we give up. Well be quiet. Well only make safe movies from now. Reporter sony pulled the movie after the largest theater chains werent going to show it. Both sony and theater chains were under pressure from other studios, from the Shopping Mall owners. Reporter but across hollywood theres fear. What happened with the interview could have a Chilling Effect on the industry. Already this week a movie set in north korea was scrapped. As for the interview, its unlikely to be seen through video on demand or online streaming. Is amazon going to provoke north korea after seeing whats done with sony, netflix, itunes . I dont see it happening. Reporter a few were planning to show Team America World police, a 2004 comedy that parodied leader kim kim jong ill banned from the big screen just like the interview. Joe fryer, nbc news, los angeles. Tonight learning details on a classified report on the secret service and some are alarming. This follows the string of embarrassing incidents and describes an agency stretched beyond its limits including agents and officers both underworked and severely undertrained. Nbcs Chris Jansing has our report from one of the places they protect, the north lawn. Reporter good evening, brian. An agency far removed from its storied history. A Protection Force described as starved for leadership and it recommends sweeping changes. In an executive summary, the panel of four independent investigators bluntly lays out the high stakes for the secret service. A single miscue or splitsecond delay could have disastrous consequences for the nation and the world. Its absolutely necessary these changes are made now. There are no doovers in the secret service. Reporter the recommendations are dramatic. A fence at least four to five feet taller to delay intruders, a significantly bigger force, 85 new agents and 200 new uniformed officers, more training time. Shockingly in 2013 uniformed officers were trained only about 25 minutes each. And to oversee the changes a shakeup at the top including a director from outside the service. Removed from traditions and personal relationships. That may not sit well inside the agency as the acting director told brian. Because we dont have time to train someone in this role. Youve got to have someone who has some history and knows where we need to go in the future. Reporter director Julia Pierson was fired after Omar Gonzalez made an unprecedented breach into the white house. And clancy has started to make changes. Security director jeh johnson says its just a start. This is not something in my judgment based on the recommendations ive seen that can change overnight. Reporter reality check. First, all this will cost money and some republican members of congress are already raising budget concerns. The report also acknowledges that change is hard and says very directly, im quoting here, some in the secret service will resist and may need to move on. Brian. From the white house tonight, nbcs Chris Jansing, chris, thanks. We get a rare look today at Boston Marathon bombing suspect dzhokhar tsarnaev. Helicopter cameras caught him being transported between vehicles then escorted into a detention facility following his last Court Appearance before the start of his trial next month. For something that happened yesterday and was over 50 years in the making, the effort to normalize relations with cuba sure seems to be moving fast. Those against it call it appeasement giving in to an avowed enemy. The president says all those sanctions arent about to bring about any other result. And today came the reaction to the proposed Seismic Shift in u. S. Cuban relations. We begin our coverage tonight with our chief Foreign Affairs correspondent andrea mitchell. Reporter passions are high in miami. Nothing is going to change in cuba. Reporter three generations of this family all against the castr castros, but 28yearold elena is eager to an opening from the island from which her parents and grandparents escaped. I have dreamed of cuba for years. Cuba is everything. Reporter now exchanges will be possible because of a spy trade. A u. S. Mole, rolando safely in the u. S. Three cubans jailed in america were given a heroes welcome in havana by raul castro. The president has had the leaders of both burma and china to the United States. And for that reason i wouldnt rule out a visit from president castro. Reporter critics said today raul castros cuba has not changed. Dictatorship, repression, jailing of your opponents and exiling the rest. Reporter president obama is arguing decades of isolating cuba should end. The country itself has changed. The world has changed. So this direction that the president has put in motion is probably long overdue. Reporter before long the u. S. Intersection in havana, the scene of those huge will become a full fledged u. S. Embassy. Caterpillar, marriott, jetblue, cocacola, gm, major league baseball. As soon as new regulations are written. Im quite certain were talking about weeks days or weeks. Certainly not months. Reporter the assistant secretary of state will be going to havana leading a delegation next month followed shortly after by secretary kerry trying to open the door to cuba. Even as cubanamericans in congress as other critics try to keep it shut. Brian. Andrea mitchell at the state department tonight. Andrea, thanks. Now lets go south for the reaction from inside cuba where changing times appear to be on the way. Where the door to the u. S. And the outside world closed long ago long before many of them were born. Nbcs mark potter is in havana tonight with one of the classic forms of transportation in that city. Mark, good evening. Reporter good evening, brian. We talk today a lot of people today and we drove all around havana. And we took our trip in the vintage style that has helped make this city famous. Hello there. Our tour guide makes his living driving tourists around havana in his fully restored 1956 chevy bel aire. We begin where he says has high hopes that normalized u. S. Cuban relations will bring even more visitors and money here. Its better for my business. Better for everything. Reporter around the bin along the harbor we come upon havanas central park where the owners of these vintage american cars have used cuban ingenuity for years to keep them running. The trade embargo has kept them from buying American Parts since 1961. They all hope that changes soon. Buying American Parts in cuba, would that be a good thing for you . Would you like that . Yes, i would like that very much. Reporter then were back on the road. This building coming up here is the u. S. Intersection. We dont actually have an embassy in cuba. Outside a long line of people seeking visas to visit the u. S. Or move there. Some say fewer cubans would leave if better relations improve the stagnant economy here. People just leave to get money. Reporter a few miles away in the old center of town we see another side of havana. Block after block of dilapidated buildings. Santros shares his home with three generations of family. Hes happy to hear the u. S. And cuba are trying to make amends. Down a neighboring street and up a rickty set of stairs a surprising jewel, the famous la garita restaurant. The owner says decades of u. S. Cuban discord have been a huge waste. But change is coming. I believe that this door that is open will be another way more possibility for the future. Reporter they also hope opening that door will bring in such things as food and computers and allow cuban Baseball Players to join u. S. Major league teams without having to defect. Brian. Mark potter in havana tonight. Thanks to you and that beautiful bel aire for our tour. Wall street just had the best day of the year, in fact the best day in three years. The dow finishing up over 400 points for the First Time Since november of 2011. Good day for the nasdaq and s p as well. Both finished well into positive territory. All this on news that the Federal Reserve is not planning to raise interest rates, at least in the near future. Still ahead, on a thursday evening a rough ride for the company attempting to transform the way so Many Americans get around. Increasing concerns about the safety of uber. Also, winning spirit. Something extraordinary happened when a 9yearold boy was recruited by a College Basketball team. Music. The getaway vehicle for all the confidence you need. Td ameritrade. You got this. People with type 2 diabetes come from all walks of life. If you have high blood sugar, ask your doctor about farxiga. Its a different kind of medicine that works by removing some sugar from your body. 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We get our report tonight from nbcs janet shamlian. Reporter sofia lu was in a San Francisco crosswalk when the 7yearold was hit and killed by a car. The driver was working for uber. After i lost my daughter, i just feel i want to die too. Reporter uber denied responsibility because the driver who had a previous conviction for reckless driving didnt have a at the time. Uber says it performed a background check but wont comment whether it knew about the conviction. A driver charged with raping and kidnapping a driver. That driver passed a background check. Some questioning whether a ride in an uber car is a safe one. Uber screening doesnt check the fbi criminal ka da tabase. Uber outsources its background checks. San francisco is suing uber. District attorney George Gascon saying inadequate because they dont include fingerprinting. Theres all this language about how theyre striving to make this a safe experience for the driver. And when you start reading the small print, you can see that basically uber is completely walking away from any liability. Reporter other Ride Services dont think either. But its uber been aggressive in fighting stronger background checks. The company has defended its screening, but on wednesday uber promised to improve saying it still has more work to do and we will do it. Pledging to build tools for enhanced driver screening and giving customers the instant ability to communicate with uber in an emergency. In the case of sofia lu, the driver has been charged with vehicular manslaughter and the family is suing uber. Experts believe if safety becomes an issue, that convenience will take a backseat. Janet shamlian, nbc news, San Francisco. We are back after a break tonight with the news for anyone whos ever dozed off in front of the television and missed what they were watching. Have diabetic nerve pain. Its progressive pain. First that feeling of numbness. Then hot pins. 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And putin talked about his love life. Hes recently divorced, hes been linked to a champion gymna gymnast. On that topic he only would say he loves someone and someone loves him and as he put it hes good so dont worry. Edward odonnell, a former countrywide Financial Executive is collecting over 57 million for helping the feds force bank of america into a record penalty payout of over 16 billion following the shoddy mortgages and shaky security era that led to the financial meltdown. Many people are worried that science and modern conveniences may mean well never get off the couch. And we may never have to move at all. Case and point, a prototype from virgin media in the uk. Its a wristband with a finger sensor that can tell when you doze off while watching tv. And then it will record the rest of the show you were watching, which we suppose could include nightly news, but we cant imagine losing any one of you for even a moment. 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But take the man youre about to meet named carter. Its not his height thats remarkable, its his age. Hes only 9 years old. Already though hes fulfilling his college hoop dreams. His story tonight from nbcs harry smith. Reporter 9yearold carter gates is one of those kids who always seems to have a smile on his face. And the guys who played basketball at Colorado College will tell you hes got a lot of spunk. They know because hes on their team. The Colorado College tigers select carter gates. [ applause ] Reporter Team impact selects College Teams from all over the country with children in their community who have life threatening or chronic diseases. Once the connection was made, what happens is amazing. You get to sit on the bench . Yeah. Like out yeah. Reporter during the games . Yeah. Reporter with the team . Yeah. Reporter who gets to do that . Me. Reporter the tigers have completely embraced carter. Hes about halfway through a grueling threeyear treatment regimen for leukemia. Is it tough being you sometimes . Sometimes. Reporter yeah . Uhhuh. Reporter whats the hardest part . Well, just like sometimes i have to be stuck in the hospital. Its not very fun. Reporter but this sure is. Carter is in the stands as he warmed up for the big game. [ cheers and applause ] reporter and there he was for the tipoff. And look who scored the first basket. James is the team captain. Hes bringing us perspective. Hes bringing us a smile. And hes just bringing us a new way to look at life. A better way to look at life. Reporter carters mom, kelly, says all of this has been a blessing for her whole family. Giving us something to do that has nothing to do with cancer. Its just fun for everyone. Which is something that we need. Reporter that night the tigers came back from 11 points down to win the game. Do you think you help the team . Yeah. Reporter how . Because they say im their good luck charm. Reporter quite honestly, its hard to tell who is helping who more. Harry smith, nbc news, colorado springs. Thats our broadcast on a thursday night. Thank you for being here with us. Im brian williams. We of course hope to see you right back here tomorrow evening. Good night. Stephen collins first tv interview about his sex scandal. Im a flawed person. Why one of collins victims refuses to accept his apology, now on extra. The devil on the hot seat. Did you feel as you were leading a double life . Disgraced Stephen Collins owning up to his despicable acts, his victims reaction today. New video, seth rogen hours after sony pulls the plug on the interview. Are you upset with corporate at sowmy . The latest leak, racially charged emails about denzel plus, from chris rock to donald trump, the stars sound off today. Its certainly a terrible thing. Trump is our special cohost in new york. Dont miss it, or youre fired. Teresa giudices christmas nightmare. Why the feds just raided her home and took her childrens presents. Plus its an extra exclusive. Nicki minaj on the year of the booty. You, kim kardashian, j. Lo. Who would win that . This is extra at Universal Studios hollywood, the entertainment capital of l. A