right now. good evening. the unidentifying sounds investigators have heard on the cockpit voice recorder of the jetliner have doomed the intrigue over how and why it crashed over the sinai desert. whatever it was scattered the wreckage for miled and killed 220 people aboard a plane millions have traveled on. american satellite data is discounting one theory as investors turn some of the focus now to who was on board the plane. nbc's tom costello has late details on the investigation. >> reporter: new video from the crash site in the sinai tonight as u.s. intelligence sources said none of the passengers or crew were on any u.s. terrorism data base. u.s. satellites did detect anir far red flash heat signature at the same time and altitude as the plane's last known lotion but there is no sense of a missile strike. russia saying they have been combing through the debris field scattered over ten miles. >> our experts have examined the crash site and the state of the flight data recorders. >> reporter: the russia news agency said the recorders captured sounds uncharacteristic of a standard flight before the plane disappeared from radar. and tonight russia media report no signs of trauma on the bodies of the victims. question was there a bomb on board or did a catastrophic mechanical failure occur in mid-flight. >> if you have a pressurized cabin, a fracture is very serious and could potentially bring the aircraft down. >> reporter: so did a repair job after the tail struck the ground 14 years ago play a role? former ntsb investigator graeg five. >> this is the tail section separated from the airplane in flight. this would have been the area of the tail strike and this entire area would have been where the major repairs were performed. >> reporter: the plane was registered in ireland and operated by metro jet with russian oversight. today irish authorities told nbc news as of last may the plane's certification were all in order. so tonight, four days after the crash, the two key possibilities on the table are a mechanical failure that led to a fire or possibly an explosion in flight or a bomb. security teams are now reviewing the procedures at the airports in cairo and sharm el sheikh. russia and egypt have a lot to lose if they determine terrorism played a role here. >> tom costello, thank you. now to the race to the president and the new "wall street journal" poll showing if the election were held today, hillary clinton would beat all of the gop candidates by one. ben carson, who polls shows in a head to head match-up would be tied with the democratic front-runner. now one year from the election, carson has begun to open distance between himself and the rest of the republican field. chris jansing is traveling with him. >> reporter: in tampa, florida, a ben carson book signing that feels more like a pep rally. fans lining up at 5:00 a.m. for a 2:30 event. and tonight in lakeland, easily a thousand more. >> i believe in his principles. >> he is forth right and honest. >> reporter: they like what he says and how he says it. >> you don't have to yell and you don't have to belittle people. >> he is not a career politicians. >> fans, not potential voterize. >> younger family people, younger christians, women usually the age of 45 and up. and that is our core base. but we have a pretty broad appeal. >> reporter: carson is raising the most money among republicans. $10 million last month with the most donors and social media followers. 4.5 million now on facebook alone. his super-pack is at the book event handing out leaflets and collecting e-mail addresses. more potential donors. the soft-spoken improbable candidate. >> is this what you thought about for retirement. >> this is not retirement for me. i was going to relax and enjoy life. >> and now the more improbable republican front-runner surpassing donald trump who today is out with a new book of his own. >> i think that ben just doesn't have the experience. we're going to run the military properly. i'm going to take care of the vets. ben can't do those things. >> reporter: but he loses to hillary clinton, stronger than any republican. because of his appeal with independents for carson. a 13 point advantage. and clinton's lower score, only 27% give her high marks for honesty and 55% like her knowledge and experience. carson's inexperience he wears proudly. >> let me tell you something, the ark was built my amateurs, the titanic was built by professionals. >> that line works great on the stump but he will have to address the experience issue. in the meantime they are working to build on his momentum, more fundraisers and visits to battleground states because a poll in november doesn't mean much unless you get folks like these to come out and vote four. lester. >> chris jansing, thank you. and with the count down clock for the election down to 12 months. president obama is taking pointed jabs at the republican field. in the second part of my exclusive interview with the president during his visit to new jersey yesterday, he offered a candid assessment of this campaign season and why voters should be engaged. >> describe the climate to me. is it any different, the political, the election climate than when you ran eight years ago? >> you know, political season is always a little bit of a silly season. i do think that what's different this time is that particularly in the republican party you have, i think, the most disgruntled, or suspicious of washington portion of the electorate that is driving the process. but there hasn't been, maybe because of super-pacs, a windowing down of the process where people are forced to talk about the issues in a more serious way. i suspect that will change over time. >> all of the people want the oval office. give me a reality check of what it is like to finally be there. >> i would say this is a big, diverse country. and that is a good thing. and democracy is messy and that can be frustrating as president. but what you want to be able to do is to stay with it and have a -- have a sense of where it is that you want to go. the most important thing i will say about this election, though, is just encouraging everybody to participate. if you are sick and tired of gridlock, regardless of what your party is, you have to get involved. you have to listen to what folks are saying, you have to -- by the way, make sure that the candidates are being willing to take tough questions, and i've been interested in seeing some of the republican candidates say they are so tough, they are going to stare down the chinese and the russians and somehow cnbc scares 'em. you have to be able to field difficult questions and that is what citizens should expect. and if people are paying attention and involved, i think they're going to make a good decision. >> president obama met with me in newark, new jersey. new developments in the recall of more than 19 millionaire bags with the deadly flaw. feds hitting the manufacturer takata with what could become a record fine. and as nbc news peter alexander explains, even more recalls could be on the way. >> reporter: after the largest auto recall in u.s. history, today the federal government fined takata $70 million, that could rise to $200 million. what would be the largest penalty ever imposed by the nagt highway traffic safety administration. >> delay, misdirection and refusal to acknowledge the truth allowed a serious problem to become a massive crisis. >> reporter: the defective airbags have lin linked to eight deaths and 100 injuries. this government test shows what could happen when ammonium nitrate, the proponent in the faulty airbags explodes disputing deadly fragments. brandy lost her left eye. >> i don't see an airbag. i see just what was left of my steering wheel after everything basically exploded in my face. >> today takata will phase out the use of the night rate. the number of vehicles recalled already 19 million made by as dozen automakers could grow, including new models. safety advocates say the federal government should have acted years ago. >> this becomes a crisis because the investigators an regulators involved in looking at this problem let it go as long as they did. >> tonight in a statement takata said we deeply regret the circumstances that led to this agreement and are committed to being part of the solution. after a device designed to save lives put them at risk instead. that controversial chemical ammonium nitrate is being phased out but they could use it through 2018, that means it is possible some recalled vehicles will need to have their replacement airbags replaced again. lester. >> peter, thanks. a new headache for volkswagen today, reeling from the emissions test cheating scandal involving some 11 million cars. the company said today an internal investigation revealed unexplained inconsistencies in the emissions of 800,000 more vehicles which could cost the company another $2 billion. and while vw is taking a hit. most automakers reported huge sales gains today, including gm, up 16% in october over a year ago. fiat chrysler up 15%. and ford up 13%. nissan up 12.5%. experts say low gas prices and an improving economy could push automakers to break an annual sales record set 15 years ago. they say as goes, ohio, so goes the nation. and that is why there is attention from across the country tonight with legalized pot on the ballot in the buckeye state. it is a big fight involving big money and wealthy investors, including a famous music star caught in the middle. nbc's kevin tibbles is there. >> reporter: the yes campaign has spent some $25 million, promoting the legalization of marijuana for medical and recreational use in ohio. >> i'm nick lachey, ohio is my home. >> reporter: one of the biggest supporters is realist tv and boy band star nick lachey. >> i'm proud to be part of a movement that will create jobs and rein vigor ate our economy and improve the safety of our communities. >> but it is part of a group of ten wealthy investors that stands to profit considerably should the ballot pass. >> for the ten, is it going to be a license to print money. >> no, it is a license to grow marijuana and create thousands of jobs. >> supporters claim pot money will soon be used to fill potholes in the buckeye state. critics counter the investors will be filling their pockets. >> it will be a constitutionally sanctions monopoly. you don't use the state constitution to give yourself a corner of the market on anything and that is what this would do. >> opponents created a ballot measure of their own. if successful, would prohibit the creation of monopolies in the state. should both issues pass it would wind up before the courts. for other opponents it is very simple. >> it is a very dangerous drug. >> for the gano family outside of columbus, the pickering over money is secondary. >> i don't care who makes the money. what matters to me is my son gets what he needs and what could potentially improve his life. >> they want six-year-old read to have access to medical marijuana to control the seizures caused by his severe epilepsy. >> he is everything and this could be his mirac miracle. >> and the experts say if marijuana can be legalized here in a conservative state, well voters in an off election year, then it could happen almost anywhere in america. >> kevin tibbles in columb columbus. thank you. chipolte said eight of the restaurants are now tied to the outbreak of e. coli that led the company to voluntarily shut down dozens of locations in washington state and oregon. the number of people sickened has reached at least 37. northern california is getting an early taste of winter with the first major snowfall of the season at mammoth mountain. about a foot fell. so the ski resort decided to open a week early. and captured on camera in portland, oregon, a commuter train pushing through high floodwaters after heavy rain over the weekend. video inside shows passengersup jumping up to avoid the water. the train agency has apologized calling the incident an error in judgment. still ahead tonight, a star on social media calls it quits with a warning to thousands of her young followers with a new study reporting how much time teens are spending online. also for all of us who sometimes get lunch out of a vending machine, we have a lunch out of a vending machine, we have a fr for adults with an advanced lung cancer lunch out of a vending machine, we have a called "squamous non-small cell", previously treated with platinum-based chemotherapy, it's not every day something this big comes along. a chance to live longer... with opdivo, nivolumab. opdivo is the first and only immunotherapy fda approved based on a clinical trial demonstrating longer life for these patients. in fact, opdivo significantly increased the chance of living longer versus chemotherapy. opdivo is different. it works with your immune system. opdivo can cause your immune system to attack normal organs and tissues in your body and affect how they work. this may happen any time during or after treatment has ended, and may become serious and lead to death. see your doctor right away if you experience new or worsening cough; chest pain; shortness of breath; diarrhea; severe stomach pain or tenderness; severe nausea or vomiting; loss of appetite; swollen ankles; extreme fatigue; constipation; rash; or muscle or joint pain, as this may keep these problems from becoming more serious. these are not all the possible side effects of opdivo. tell your doctor about all your medical conditions including immune system problems or if you've had an organ transplant, or lung, breathing or liver problems. a chance to live longer. ask your doctor if opdivo is right for you. bristol-myers squibb thanks the patients and physicians who participated in the opdivo clinical trial. how much time are american teens spending in front of their screens? a new study said an average of nine hours a day with more than an hour just on social media. but one huge teen star on social media says what a lot of kids are seeing on it is all a lie. as our joe fryer explains, she said it is time to come back to reality. >> a social media star has gone from selfies to self-reflection. >> i'm quitting social media and tell anyone and everyone who is still watching, i was miserable. >> reporter: at 1 years old, o'neill had no shortage of followers. more than half a million on instagram and 200,000 on on tumbler and 60,000 on snap chat. >> you through being on instagram was amazing it. was for the day. but then -- >> her profile is titled social media is not real life. she deleted 2,000 photos and edited the captions. this reads not real life. took over 100 in similar poses trying to make my stomach look good. would have hardly eaten that day. >> [ inaudible ]. >> o'neill's statement comes as the group's common sense releases a study about teens and technology. girls on average spend an hour and 32 minutes a day on social media and 30% of teens who use social networking sites say their parents know little about what they do. experts are worried about the lack of personal connection. >> there is nothing better than face-to-face communication for understanding emotions and empathy and really being able to communicate with people. >> as for o'neill, she is gaining attention for not wanting attention. dumping her money making social media sites and starting a new website to discuss the issue to encourage teens to unplug more often. >> go out to a cafe, to a beach, to a park. just go walk your dog or do something and meet someone else doing the same. >> a life that can be social without media. joe fryer, nbc news, los angeles. we're back in a moment with a small plane in distress. the pilot forced to take desperate measures as it fal ♪ every insurance policy has a number. but not every insurance company understands the life behind it. for those who've 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>> it is a question luke sanders came to him as a traveling salesman. fed up with high calorie fast food, he decided to do something about it. launching farmer's frig. a small company that sells salads, out of machines around downtown chicago. >> my first reaction was, yuck. >> if i'm choosing between a salad and a hamburger, one has been designed to be really delicious and savory, the other one is the thing that mom made you eat when you are a kid. >> but he's trying to change that, using only the freshest ingredients. >> black beans, roasted corn. >> and keeping the salads in the machines for just 24 hours. every morning the still yummy leftovers are donated to a food pantry. >> 360 without the dressing, 400 with. >> and healthy for sure but with a town famous for deep dish pizza choose this over junk food. >> get past the stigma of the salad and the vending machine. >> we asked him to conduct a experiment. we made everything a dollar. candy, cookies and the chips and the salad. >> what do you see. >> we saw almost every single person in the line go for the salad. >> he charges $8 for the salad. and while he is not making a profit, he is getting closer. >> tell me what success looks like. >> if you could get a salad as easy as a coke, i've done my job. >> proving that healthy food could be healthy too. nbc news, chicago. and that will do it for us on this tuesday night. i'm lester holt. for all of us at nbc news, thank you for watching and good night. gwen stefani's new interview. why they split the day after the grammys now on "extra." >> gwen goes there with ryan seacrest. >> my life blew up in my face. >> the intimate details and rumors about blake. >> i think he's hot. don't you? >> robin williams' widow revealing it wasn't depression that led to his suicide. >> that's what i have spent the last year trying to get to the bottom of. >> and a rare interview with robin's son zach. >> do you think your dad would be proud? >> donald trump on records that his exis trash talking his wife. >> melania would be an amazing first lady. >> does the donald have rosy's vote? >> and first words about her run away drama. and daniel craig. >> could we soon see a very different 007? >> then months after rumors giselle got secret plastic surgery, are these new photo ph proof? plus kimmel's back

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