Right now. Good evening. Ten american sailors held by iran are safe tonight. Freed earlier today. Quickly sparing another Major International crisis. But not the humiliation of this sight of American Navy crewmen, hands above their heads, boats and weapons displayed on Iranian Television and around the world. Tonight we learned more about how they ended up in iranian hands and how two long, bitter adversaries managed to extinguish this flat point before it could fully erupt. Jim miklaszewski represents from the pentagon. Reporter the images are jarring. The ten american sailors on their knees, hands clasped behind their heads o the deck of their own u. S. Navy vessel. Surrounded by armed iranian military. The video shot by the iranians and aired on iranianstate television. One said more videos of the americans, nine men and one woman in sharing a meal in show they were well treated. One of the sailors apologized for entering iranian territorial waters. It was a mistake that was our fault and we apologize for our mistake. It is unclear what were the circumstances when the video was taken. U. S. Military officials call the video pure propaganda. The u. S. Sailors were released early today. The two boats returned to the u. S. Navy. Secretary of state john kerry pulled out all diplomatic stops to personally negotiate the americics release. Calling irans foreign mimister at least five times over ten hours, according to a Senior State Department official. Im appreciative for the quick and appropriate response of the iranian authorities. Reporter irans foreign minnist tweeted happy to see dialogue and respect chblt lets learn from the latest example. But Foreign Policy experts warn that iran is a dangerous adversary. There are things they are doing in the helpful at all. They are american citizens detained in tehran which is of great concern to us. Reporter today the revolutionary guard acknowledged they found in evidence the americans were spying. And now that they have been released, the navy should find out why they drifted in iranian territorial waters where they were detained. Tonight those ten american sailors are at an undisclosed location in the persian gulf. Where they will get a full physical and Mental Health exam. The e ect same eatment given too returning p. O. W. And hostages, lester. Jim miklaszewski, thanks. This time last night we were in the Nations Capital for the state of the union address. The president striking a more optimistic tone than in years past but raising questions he says americans need to answer about the economy, technology, security and the rancor in our political system. One of the biggest regrets he said was the political divide only grewwuring his what it will take t t attain the future all americans want. But it will only happen if we Work Together. It will only hapapn if we can have rational, constructive debates. It will only happen if we fix our politics. While the president didnt mention donald trump by name, it wasnt hard to figure out who he had in mind with some of his more pointed remarks last night. And much to the surprise of many, trump surfaced the same way in the formal republican response to the president s speech. As Hallie Jackson reports, one of the gop rising stars used her National Platform to take her partys frontrunner to task. Reporter even when hes not supposed to be in the spotlight, donald trump still is. Nikki hails republican response rebuking not just president obama but her president ial times it could be tempting to follow the siren call of the angriest voices. We must resist that temptation. In that context, you are referring to donald trump, correct . He was one of them, yes. Mr. Trump has definitely contributed to what i think is irresponsible talk. Reporter trump now hitting her back. Im very strong on illegal immigration, shes weak onllegal immigration. Maybe it will turn out to be bad for her because people know where i stand and you see the numbers. Reporter governor hallie and House Speaker paul ryan represent what some think the gop should be, more diverse. More inclusive. What the gop has is donald trump, leading the pack and mobilizing a new base of support for the party. Even as the establishment strikes back and his closest rival fights back. Donald comes from new york and he embodies new york values. And listen, the donald reporter trump keeping up birther attacks on cruz, and republicans now saying it brothers them he was born in canada to an american mother. That is a big factor. Reporter the rivals now fighting for first in iowa. Leaving little room for the establishment candidates. The establishment being left out entirely for the first time in history. Y. Are we going to be able to pull everyone together. Eporter the battle lines drawn and the gop civil war, the fight for the partys future. Hallie is standing by her speech even as she comes under fire from leaders on the conservative right. A few years ago she was seen as a key party crusader, a star in the making in that party. Hallie jackson, thank you. The race is growing contentious from the democratic side with four days until the next debate which will air here on nbc, the latest polls showroubling news for Hillary Clinton. With her numbers slipping, clinton and Bernie Sanders are stepping up attacks on we get more from nbcs kristen welker. Reporter Hillary Clinton and Bernie Sanders escalating the sniping today. Clinton firing the first volley, repeating her toughest attacks on health care and guns. Senator sander has been a reliable vote for the gun lobby and i have been standing against them for a long time. Reporter on msnbc today, sanders punched back. To say im a supporter of the nra is a meanspirited and unfair and inaccurate statement. Reporter her ramped up rhetoric comes with the democrats locked in an unexpected nailbiter. A new National Poll showing her lead tumbling. She still tops sanders but only by 7 points, a sharp decline from her 20point lead last month. Today she down played the numbers. No, im not nervous at all. Im workingard. And i intend to keep working as hard as i can. Reporter so why are more and more democrats feeling the selfdescribed democratic socialist, could be tapping into voters desire for an antiestablishment candidate. That hunger particularly strong amamg Younger Voters under 45 who favor sanders nearly two to one. I think tha Bernie Sanders aligns more with my views and i think we should be voting for the person who will be best in the white house. Reporter donald trump may have help erode some of clintons support, reminding voters of her husbands transgressions when he is in it the office. Im so proud my husband is on the campaign trail. In New Hampshire and in iowa in the last week. Reporter and ted the president returned where he brushed aside the declining polling numbers, saying everything is good. A sign the Clinton Campaign may be getting jittery, for the second time this week the aids held Conference Calls with others bashing Bernie Sanders. He hasnt said how he will pay for the those details are coming soon. Lester. Kristen welker, tonight, thank you. There are new relations about el chapaps time on the run. Just released Text Messages shows hissin fatuation with the same actress that helped arrange his interview with actor sean penn. We get details from jacob rascon in mexico. Reporter it plays like the telenovember ella that made her famous. On the rub smitten with a megastar, planning secret meetings in the mountains. In a series of Text Messages intercepted by the mexico government, el chapo reaches out to del castillo. Im very eager to meet and become great friends. You are the best in the world. I will take care of absolutely everything. It is so moving that you say you will take care of me, she replies. No one has ever taken care of me. Thank you. I am free next later guzman seemed to obsess over which cell phone to buy her as a surprise. Preferably a pink phone. And writing to his attorney, tell kate that when she comes we will drink tequila and dance. Tell her just like that. As for meeting actor sean penn, el chapo didnt know who he was and told his attorney, im looking him up on the internet. Guzman, del castillo and penn finally med claiming guzman told him, quote, i supply more heroin, meth and marijuana than anybody else in the world. But guzmans attorney refutes that account. Inside the federal prison behind me el chapo is again on the move, this time by Mexican Authority who have transferred him between cells eight times since he arrived here last friday. Desperataty trying to prevent yet another jacob rascon, nbc news, mexico. A warningoday from the ntsb that without a major safety upgrade to the nations rail lines, we risk another catastrophic crash. Investigators say a system called ptc, positive train control, could have prevented several deadly crashes. But while amtrak has rolled it out on many trtrns, tom costello reports that other railroads are lagagng far behind. Reporter it happened last may 12th. Eight passengers died, 200 injured when a speeding amtrak train derailed north of philadelphia. 2013, four dead when a speedy metronorth trail derailed in the bronx. 2008, 25 dead after a metro link train blew a stop signal in california. While the technology was available to prevent those accidents, none of the trains had it. It says you are going too fast. You are at 90 miles per hour. It just took over control of the train for me. Actrack Training Center in it delaware, we saw how positive train control works. Eight months after the philli crash, amtrak has finished equipping the entire north eefts corridor. With transponders in the tracks monitor every train and slam on the brakes if necessary. But ptc is only in place in the neeft and areas around los angeles. The rest of the railroads are owned by freightlines which complained about t Technology Cost and complexity. So congress has given them more time, until 2018, to get ptc up and running. Not good enough, says safety experts. Every day that ptc is not in place, we run the risk of another amtrak crash in philadelphia, or another bronx crash. Reportete in essence, the technology is abozt trying to remove human error as a factor by forcing the train to abide by speed limits and stop signals. Amtrak said it would have saved lives in philadelphia. We are going to can to make a safer a damn safe railroad safer. Reporter still no word from ntsb on why the amtmtk train was speeding in philli. But the highspeed safety fix is on a slow rollout. Tom costello, nbc news, dell a wear. A bitterly cold night in store for much of the u. S. Blinding lakeeffect snow and strong winds hit upstate new york. Whiteout conditions force major roads and schools to close n. Erie, pennsylvania, about 85 cars were involved in a chainreaction crash this morning. And millions were below freezing today in the midwest and northeast. While a slight warmup is expected forecasters are watching a potential noreaster this weekend. Well keep you posted on that. The National Guard has been called in to aid in the water crisis in flint, michigan. A water supply contaminated with lead. They are joining Community Activists handing out water to residents. There are fears it may thousands of flints children. A dismal day on wall street. Stocks dropped in the correction territory. The dow dropping nearly 365 points today. The s p 500 closed down 2. 5 . And the nasdaq plunging more than 3 . Still ahead tonight, president obama vowing a moon shot to cure cancer once and for all. Offering new hope for patients and their loved ones. But how . Also time is running out to pay for to play foror tonights 1. 5 billion Powerball Jackpot. It turns out there might be a real diagnosis to powerball fever. Morning ted scott ready to hit some balls . Sure. Ooh y buddy, whats up . This is what it can be like to o ve shingles. Oh, man. I keep thinking how did he get this, hes in such good shape. If you had chickenpox, the shingles virus is already inside you. 1 in 3 people will get shingles in their lifetime. Your immune system weakens as you get older and it loses its ability to keep the shingles virus in check. After almomo 3 weeks, i just really wanted to give itit shot. The shingles rash can last up to 30 days. You know, im not feeling it today. Dont worry about it buddy. Well do it another day. Dont wait until you or someone you care about develops shingles. Talk to your doctor or pharmacist today im here at my house, on thanksgiving day and i have a massive heart attack right in my driveway. The doctor put me on a bayer aspirin regimen. Be sure to talk to your doctor before you begin an aspirin regimen. Go talk to your doctor. Lets explore now a very ambitious idea announced by the president in his state of the union. A commitment to cure cancer in the way we committed to reaching the moon in the 60s. It will be led by joe biden and aimed at ending the disease that killed the Vice President s son and 600,000 other americans every year. Anne thompson explains what the new National Effort could mean for the millions of americans battling cancer. Reporter the moon shot is the symbol of american ambition and achievement. Now Vice President joe biden will lead a for biden, this is personal. Choking up, talking to Stephen Colbert about his son beau, who died of brain cancer. My son was better than me. And he was better than me in almost every way. Reporter the Vice President has two goals. Increase spending on research and increase collaboration. Just this week, a group of Drug Companies and researchers announced they would Work Together to find better treatments. Last week bidens staff met with the president of the American Association for cancer research. How close are we to curing cancer . We could really decrease by a lot the number of patients that die from cancer. So i think this ought to be our decade. Dr. Baselga credited getting the first budget increase in a decade, an extra 264 million, a 5 jump. The amerin cancer brawlen said they need sustained funding and all patients need access to best care. 20 or more women with Breast Cancer get less than optimal Breast Cancer treatment. Those are some of the things we could fix right now and fix very quickly. Emily whitehead is now 10 years old because of a breakthrough to treat her leukemia at the university of pennsylvania and childrens hospipil of philadelphia. Friday she will meet the Vice President , a living example of what is possible. Ain thompson, nbc news, new york. When can he come back, they will be there for you. The sitcom ion fans have been w look, the wolf was huffing and puffing. Like you do sometimes, grandpa . Well, when you have copd, it can be hard to breathe. It can be hard to get air out, which can make i ihard to get air in. So i talked to my doctor. She said. Symbicort could help you breathe better, starting within 5 minutes. Symbicort doesnt replace a rescue inhaler for sudden symptoms. Symbicort helps provide significant improvement of your lung function. Including chronic bronchitis and emphysema. It should not be taken more than twice a day. Symbicort contains formoterol. Medicines like formoterol increase the risk of death from asthma problems. 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Before i had the shooting, burning, pinsandneedles of diabetic nerve pain, these feet were the first in my family to graduate from college, raised active twin girls, and trained as a nurse. But i couldnt bear my diabetic nerve pain any longer. So i talked to my doctor and he prescribed lyrica. Nerve damage from diabetes causes diabetic nerve pain. Lyrica is fda approved to treat this pain. Lyrica may cause serious allergic reactions or suicidal thoughts or actions. Tell your doctor right away if you have these, new or worsening depression, or unusual changes in mood or behavior. Or swelling, trouble breathing, rash, hives, blisters, muscle pain with fever, tired feeling or blurry vision. Common side effects are dizziness, sleepiness, weight gain and swelling of hands, legs, and feet. Dont drink alcohol while taking lyrica. Dont drive or use machinery until you know how lyrica affects you. Those who have had a drug or alcohol problem may be more likely to misuse lyrica. Now i have less diabetic nerve pain. Ask your doctor about lyrica. An unusual chase on the highways of texas today. And it wasnt exactly at highspeed. For an hour and a travel Police Chased a stolen tractortrailer through two counties in the dallas area. They used sticks and tire deflas devices. They finally fired of the truck and he finally surrendered. Inform an absence of 21 years. The Los Angeles Area is getting its old football team. Nfl owners approved the application by the rams to move back to l. A. From st. Louis. It will happen immediately. At the same time the owners approved a new stadium in nearby inglewood california that will be the home of the rams. The cost of the stadium almost 2 billion. It is the most fans have waited for since friends went off the air in 2004. L six cast members will be reunited by a tv event. But they are no appearing as ross, chandler, joey and phoebe. Instead they come together in a special airing in february on nbc honoring tv director james burros. When we come back, an answer to why so many of us hate going out to the record l jackpot even when we know how hard with the pain and swelling of my moderate to severe rheumatoid arthritis. Intimidating. Doing something simple. Meant enduring a lot of pain. If ra is changing your view of everyday things orencia may help. Orencia works differently by targeting a source of ra early in the inflammation process. For many, orencia provides longterm relief of ra symptoms. Its helped new ra patients and those not helped enough by othth treatments. Do not take orencia with another biologic medicine for ra due to an increased risk of serious infection. Serious side effects can occur including fatal infections. Cases of lymphoma and lung cancer have been reported. Tell your doctor if youre prone to or have any infection like an open sore, the flu, or a history of copd, a chronic lung disease. Orencia may worsen your copd. If youre not getting the relief you need. Ask your doctor about orencia. Orencia. See your ra seems like weve hit a road block. That reminds me. Anyone have occasional constipation, diarrhea. Gas, bloating . Yes one Phillips Colon Health probiotic cap each day helps defend against occasional digestive issues. With three types of good bacteria. Live the regular life. Phillips. Woman its been a journey to get where i am. And i didnt get here alone. There were people who listened along the way. People who gave me options. Kept me on track. And through it all, my retirement never got left behind. So today, im prepared for anything every someday needs s plan. Lets ta about your old 401 k today. The latest o oa missing sioux city woman who was found in moville last night. Plus. Its a matter of faith. A dialogue between local leaders of different faiths. And. See how you can help Big Brothers Big Sisters in siouxland. Meet a former little now giving back. Finally tonight, consider this. Just a short time from now america will either have a new billionaire, or the Powerball Jackpot will roll over to another record. Our kreevin tibbles explains to us why we drive to win even when the odds are against us. Reporter powerball lunacy is sweeping the nation. The symptoms an increased hope rate and crossed fingers. So we went to renounced behavioral psychologist dr. Frank farley to analyze. Why do we buy these things . Turns out we americans suffer from a new condition. Type t. , for thrill, type t. Personality. It is a thrill, man. I love it. Reporter that is why were wearing out the machines, because for 2 a pop we could all be eternal optimists. This is it. This is going to change my life forever. If you have to have a little hope and driv if you dont have hope, what do you have . 2. And then there is the Mount Everest affect. Why play . Because it is there. Everest of lotteries. It is too big to ignore. I want to be a billionaire. Reporter and heck, when you see everyone else lining up to play, it becomes contagious. F. O. M. O. , fear of missing out. This is the newest fear in the armament of the psychologist. For us to study. Because everybody else is buying a ticket . Pretty much. Reporter there is another less scientific explanation. Number one on my list is fun. Reporter and a few other reasons too. But for now the best prescription, stay optimistic until the powerball drops. Kevin tibbles, nbc news, philadelphia. I dont know about you. But i feel better. That will do it for us on a wednesday night. Im lester holt. News, good night and matt good evening and thanks for joining us. Im matt breen. Heila and im sheila brummer. Authorities say shaniqua hayes is lucky to be alive the sioux city woman was missing for more than two days before authorities found her lying in the snow near moville, iowa. matt today, ktivs tiffany lane spoke with hayes family and friends, who were desperate to find her. Tiffany . Matt and sheila, those closest to shaniqua hayes say theyre are thankful she has been found after a frantic 48 hour search. At around noon, on sunday, family members say hayes was last seen leaving the tyson plant, in dakota city, nebraska. Family and friends, who are used to hearing fro hayes said that they werent started contacting her friends before calling sioux city