stephanie gosk, nbc news. >>> another record on wall street today, just 12 days after crossing 25,000, the dow crossed 26,000 today for the first time. stocks however pulled back from those highs. the dow finishing down about ten points at 25,792, the nasdaq and s&p down as well. >>> let's turn now to an nbc news exclusive. facebook under new fire tonight from three silicon valley insiders who accuse the tech giant of profiting at the expense of users like you and they say warnings were ignored as facebook focused on its bottom line, opening the door for russia to exploit its platform during the 2016 election. all three sat down with our business correspondent jo ling kent. >> reporter: tonight a stunning charge against facebook. >> facebook is a living, breathing crime scene for what happened in the 2016 election and only they have full access to what happened. >> reporter: from three silicon valley insiders. >> did facebook neglect its responsibility to its users? >> in retrospect, definitely >> absolutely. >> yes. >> reporter: roger, early facebook investor and former mentor to ceo

nbc's stephanie gosk now with the latest from the courtroom. >> i know the truth. and i know i'm worthy of sharing my story. >> reporter: after two full days of emotional statements from larry nassar's accusers -- >> this man has broken my world. >> reporter: the former head doctor for the olympic gymnastics team wrote a six-page single-spaced letter. he's heard enough. >> this isn't worth the paper it's written on. there's no truth in here. it's delusional. >> reporter: in the letter, nassar says he can't handle the testimony emotionally and attacks judge rosemarie aquilina. >> judge aquilina is seeking media attention over court protocol. really? >> reporter: nassar pleaded guilty to multiple state charges of child sexual abuse. as part of that agreement the michigan court invited all of his accusers, nearly 150 women, to speak at his sentencing, including olympic bronze medal winner jamie dantzscher. >> you're a pathetic monster that is only sorry you got caught. >> reporter: dantzscher together with olympic stars simone biles and mckayla maroney all say nassar

stephanie gosk, nbc news. >>> still ahead, pope francis is facing one of the most difficult trips ofis pontiff cat. we'll explain next. 1, 2, 3, push! easy! easy! easy! (horn honking) alright! alright! we've all got places to go! we've all got places to go! washington crossing the delaware turnpike? surprising. what's not surprising? how much money sean saved by switching to geico. big man with a horn. fifteen minutes could save you fifteen percent or more. wiback like it could used to? neutrogena hydro boost water gel. with hyaluronic acid it plumps skin cells with intense hydration and locks it in. for supple, hydrated skin. hydro boost. from neutrogena new kellogg's chocolate frostmmmflakes. chocolatey! mmm mmm mmmmmm yeah, chocolate! chocolatey. crunch into chocolatey gr-r-reatness. they're gr-r-reat! she pretty much lives in her favorite princess dress. but once a week i let her play sheriff so i can wash it. i use tide to get out those week old stains and downy to get it fresh and soft. you are free to go. tide and downy together. advil liqui-gels minis. our first concentrated

stephanie gosk, nbc news, brockton, massachusetts. >>> we'll take a turn now to the alleged hush money scandal that has so many people talking. it all started with a bombshell report claiming president trump's attorney paid an adult film star $130,000 to keep quiet about an extramarital affair. now that actress has spoken out but she has left far more questions than answers. nbc chief white house correspondent hallie jackson has the story for us. >> reporter: for melania trump a standing ovation at the capitol on her husband's big night. he nowdsent's attorney gave six figures to stormy daniels to keep an alleged affair quiet. >> does this at all seem familiar to you? tighty-whities. >> reporter: the appearance comes after the "wall street journal" reported daniels received hush money before the election to keep under wrapped a supposed sexual relationship with donald trump in 2006. the allegations of an affair denied by the president's longtime lawyer and denied by daniels, herself, in this signed statement. but -- >> the signature on the original statement does not match the signatur

stephan stephanie gosk, new york. >>> as many as 50 cars were involved in crashes on i-94. police said drivers were going too fast for the conditions. part of the highway was closed down for several hours. meteorologist dillon drier has been following the cold. she lass thas the forecast. >> good evening. for those folks enjoying new year's eve in new york city it is going to be brutally cold. 11 degrees at midnight, the wind chill down around 5 below. it's cold all across the country. at midnight, minneapolis, 10 below. chicago will be 1 below. atlanta, 28 degrease wi -- degrees with colder wind chills. dayton starts off with a 16 below zero wind chill. the cold stretching all the way down south. as we go through the first week of the new year, minneapolis by friday morning, 6 degrees with colder wind chills. >> unbelievable. thank you. >>> they've already rung in the new year in many parts of the world. and just like in this country, security is a major concern. gabe gutierrez is following that. >> reporter: from dubai to seoul. to hong kong. 2018 is already making a spec

that would be great. >> stephanie gosk reporting there. now i want to tell you more about the alert team. they cannot drink at all 24 hours before their shift. they're also responsible for monitoring their own emotional well-being, something called the personal reliability program. if something traumatic happens in their lives like a death or a breakup, they have to report it and may have to take some time off before going back to their job. >>> coming up, we're tracking that weekend forecast. looking good? >> it's looking pred good. nice and dry for the most part. a live look outside. we're still seeing that fog across the entire bay area but we are tracking the chance of rain, how that could affect your plans heading into the work week. details coming up in just a bit. stay with us. nbc bay area responds. to a san jose man who says p-g-&-e owed him five grand, but it >>> well, nbc bay area responds to a san jose man who says that pg&e owed him five grand but wouldn't fully pay it up. >> that is a lot of money. so he asked our consumer in

stephanie gosk, nbc news, new york. >> look at them. still smiling.e're not quite done with them yet. chris malone will give us a live update on time square in about 15 minutes. >>> it's been 2018 in many parts of the world. i shared some of the best celebrations on my facebook page. most countries put on fireworks but due by went above and beyond and athens with the atroppolis, one of the most famous landmarks and in moscow, replacing snow usually seen and berlin celebrating over the gates. >> 3, 2, 1! >> i know my kids are fast asleep and it's past their bedtime for a lot of children out there. these families didn't miss out on the new year's eve activities, but rang in 2018 at noon. the annual noon yards eve bash in south d.c. it's a great idea. i know my kids can't hang. they can't hang. >> i hope they're bundled up all the kiddos tonight to see fireworks. >> oh boy, oh boy, when we say dangerously cold sometimes that gets tossed around a lot, this truly is. >> as i was saying, 30 minutes frostbite. it's very easy to think you are okay. make sure

nbc's stephanie gosk has the details. >> reporter: snapchat, youtube, instagram, is all this time on smartphones bad for our kids? >> we're seeing increases in anxiety, increases in depression, certainly increases in sleep deprivation because they're staying up late at night texting each other. >> reporter: now two large shareholders are calling on apple to step up, writing in part, "it is both unrealistic and a poor long-term business strategy to ask parents to fight this battle alone." the letter asks apple to help develop better apps for parents that limit time and content on their children's phone. 50% of teens say they are addicted to their devices. and according to one study, eighth graders who spend lots of time on social media have a 27% higher risk of depression. a year ago, we had a group of teens track their daily phone time. >> four hours and 26 minutes. >> i'm over nine hours. >> reporter: we asked those same kids to give up their phones for a week. >> i'm already really bored. >> kind of sucks. >> reporter: but then something interesting. >> i guess i should like start

stephanie gosk reports the reckoning may just be getting started. >> reporter: at the 2012 london games, the u.s. women's gymnastics team leveled the competition. four of these five athletes now say team dr. larry nassar abused them. >> who was the doctor that usg sent to keep us healthy and help us get through? the doctor that was our abuser. >> reporter: jordyn wieber and aly raisman were both in court today for nassar's sentencing hearing. >> larry, you should have been locked up a long, long time ago. >> reporter: but raisman says usa gymnastics is rotting from the inside. >> we need to believe this won't happen again. >> reporter: on thursday usag announced it was shutting down the ranch run by coaching legends marta and bela karolyi. >> usa gymnastics neglected to mention they had athletes training there the day they released the statement. >> reporter: the karolyis say they knew nothing about the abuse while usag told nbc news it went to authorities in 2015 after the first complaint. >> your actions have walked with me every step of the way. >> reporter: also under fire nassar's

stephanie gosk has more of that. >> good morning. 33 years and more than 6,000 shows, david letterman hung up his hat for late night in 2015. retirement didn't last long. he's back with a new show on netflix. it launches with the me too movement sweeping the country, raising questions about misconduct he's long since admitted to and apologized for. >> i had a show for a long time, then i didn't have a show for a long time. >> reporter: he's keeping the beard, but david letterman's retirement is over. >> how great it is to be out of the damn house. >> reporter: his new show on netflix is called "my next guest needs no introduction." up first, barack obama, the former president's first tv interview since leaving office. he shared a photo of himself and daughter sasha on stage with prince. >> this was probably three or four months before he his own terrible dancing. >> i think the key is what we call staying in the pocket. >> sure. >> i think everybody here knows, dads who get out of the pocket and they're trying stuff they can't pull o

stephanie gosk is back with the story. >> reporter: this was an incredible trip.t it's much bigger and a more powerful one, taking a jab at north korean leader, kim jong-un. putting aside criticisms over style, it's an irrefutable message. we met an all-female unit, ready to push that button. passing through the farmlands of north dakota, it's possible not to know that here, is one of the most devastating nuclear arsenal in the world. operated by air force base minot. the air force invited us to take a look around. a slow cargo elevator dropped 80 feet down. our guide, opening the first of two blast doors. >> these doors are made of concrete and rebar. they're 8 tons each and they've been here since the '70s when they built this place. on the other side is a launch control center, 24 hours a day, 365 days a year, for roughly 40 years, it's been staffed. today, by an all-female alert team, the first of its kind at minot. these captains, both in their 20s, sit waiting for the call from the president. that message has to come from who? >> it has to come from potus. >

stephanie gosk is here this morning. >> reporter: good morning to you.biles golden performance was one of the highlights from rio. but now, the gymnastics superstar is opening up about a low point in her life, adding her name to the athletes that have accused larry nassar of sexual abuse. today is his sentencing in a michigan courtroom. some of those women will confront him face-to-face. this morning, dozens of larry nassar's victims will have their voices heard in court. sentencing for the long-time xwim na gymnastics doctor, following his guilty plea to abusing hundreds of girls. more than 100 accusers are expected to give victims statements this week. >> it's the first time that the girls have been brought to face their abuser. >> reporter: on monday, simone biles accused nassar of abuse. biles writing, there's many reasons why i've been reluctant to share my story. i know now it is not my fault. she describes his behavior as unacceptable and disgusting. adding, we need to know why this was able to take place for so long and to so many of us. we need

stephanie gosk is back with the story. this is fascinating. >> yeah, this was an incredible trip.weeted i too have a nuclear button but it is much bigger and a more powerful one, taking a jab at kim jong-un. it is a irrefutable message, the u.s. controls a massive nuclear arsenal. we met an all female unit ready at any moment to push that button. passing through the sweeping farm lands of north dakota, it is possible not to realize that here, buried beneath the ground, is part of the most devastating nuclear arsenal in the world. operated by u.s. air force base minot. with north korea tensions on the rise, the air force invited us to take a look around. a slow cargo elevator dropped 80 feet down. our guide opening the first of two blast doors. >> these doors are made of concrete and rebar. they're eight tons each and they have been here since the '70s when they built this place. >> reporter: on the other side is what is called a launch control center. 24 hours a day, 365 days a year, for roughly 40 years, it has been staffed. today, by an all female alert team. the first of its ki

nbc's stephanie gosk is here with the latest on all of this. hey, steph, good morning. >> good morning, guys. big news overnight days after dr. larry nassar was sentenced for abusing young gymnasts in his care, the usoc taking action, six strict requirements must be followed in order for usa gymnastics to move forward as the sport's governing body, including the immediate resignation of all of its board members. overnight, an ultimatum to usa gymnastics. the u.s. olympic committee says the sport's national governing body will face termination unless the entire board of directors resigns by next wednesday. we do not base these requirements on any knowledge that any individual usag staff or board members had a role in fostering or obscuring nassar's actions, ceo scott blackman wrote in an e-mail late thursday. our position comes from a clear sense that usag culture needs fundamental rebuilding. usa gymnastics responding, not saying its board members will resign but instead that it completely embraces the requirements outlined. only three of usa g

nbc's stephanie gosk has been following this story. >> reporter: today is day four. in larry nassar's sentencing hearing. the testimony could last until monday. the former gymnastics doctor wrote a letter to the court saying he can't handle it emotionally. usa gymnastics heard what some of the high-profile accusers are saying and made an announcement about its program. usa gymnastics says it's looking for a new place to train. announcing late thursday that the texas ranch, belonging to bella and martin will no longer serve as the national team training center. the couple has a long storied history with gymnastics and is credited for the success in the olympics. a statement was posted on their website saying, after nearly four decades of spiriting young gymnasts towards greatness in sport, our yearly tradition of karolyi's gymnastics camp has come to an end. multiple olympic medal winning gymnasts say former dr. larry nassar abused them at the ranch. the karolyis denying knowing anything about the abuse. >> most of his treatments occurred at my personal hotel room or