This morning, the red flags raised about the shooter weeks before the ambush attack. All that plus President Trump returns to washington overnight, to a full plate of issues here and broad. Chrissy teigen and john legend fire back after a twitter uses drags them into a false conspiracy theory. And this is today. Both what . We have exciting news to share about us. And here it is, january 2nd, 2018. From nbc news, this is today, with Savannah Guthrie and hoda kotb, live from studio 1a in rockefeller plaza. Good morning, everybody. It is today. We are kicking off the year right. Hoda is officially the coanchor of today. This is the most popular decision that nbc has ever made. I think we should send some medics to alexandria, virginia, has likely faded. This is a tradition around here, you know . Lets play it one more time. And hoda kotb. One more time. And hoda kotb. One more time. And hoed ka kocot hoda kotb. Theres no one i would rather be sitting next to in 2018 than you. Were going to celebrate all morning. We have a hash tag. Savannahho savannahhoda2018. Lets get to the news. This bonechilling cold will not end. Al will have a forecast in a moment. Lets go to make mccoy. He is in frigid chicago this morning. Good morning. Reporter good morning and congratulations, hoda. Its 5 below and 20 below when you factor in the windchill. With the holidays now over, many are returning to work and school, they have no choice but to step outside. Many th morning, much of the country is kicking off the new year in a deep prize. Chicago waking up below zero for the fourth day in a row. This is freezing out here. I dont want to take my hands out and open the door. Im freezing. Im from florida. This is craziness. Reporter in northwest washington, an ice storm toppled power lines, officials urging people to stay home. Texas is coated in ice. A spatula doubling as a window scraper. And this Police Officer outside dallas, slipping on a highway, as a car nearly slides into him. Dangerous weather has turned deadly. At least five people freezing to death across four states. Polar plunges are a new years day tradition. But this years event in milwaukee came with a medical warning froms organizers. A polar plunge had to be canceled because they couldnt cut through the ice. Hockey mans attending the nhls winter classic found their drinks freezing before they could drink them. Its cold. Reporter nigagara falls thi morning frozen, too, as the bitter cold shows no sign of letting go. Some Public Schools have decided to cancel class this morning in light of the cold, places like indianapolis and cedar rapids. Some buses wont start after sitting idle for the past two weeks. Bundle up. Al has his eyes on the cold. There could be a nasty storm coming. Well get to that in a bit. Right now, theres 115 Million People impacted by windchill advisories and warnings, from texas to florida and new england. Windchills right now, it feels like 27 below in minneapolis. 28 in indianapolis. 2 above in new york city. Look how far south in cold feels. 19 in austin, 16 in new orleans, 10 in montgomery. Atlanta, the windchill is 2 above. Were going to see temperatures to struggle to get into the low teens to mid20s. We bottom out on wednesday morning. And we got one more shot of really cold air coming in. Saturday, sunday, new york city, 2 degrees. 7 below in indianapolis. And in minneapolis. And were watching this storm in the next half hour. Were going to look at this. Depending on the track of this, we could have 6 inches or 12 inches of snow along the eastern seaboard and wind gusts of 50 Miles Per Hour. Youre making that winter storm face you make. One of the traditions of the today show, the new host buys everybody hot chocolate. Thank you so much. Tens of thousands people returning from National Trips last night arrived home to an unexpected welcome, massive lines at customs and Border Protection checkpoints, after a computer glitch took the whole system offline. Tom costello has the latest. What happened here . Reporter i arrived on an International Flight in the afternoon. The problems began about 7 30 eastern time. It took two hours to get the system back up and running normally. Nothing to indicate this was a hack or attack. But it caused major delays and frustrations as travelers arrived back in the state from that busy holiday. It was a holiday headache, for travelers headed home on new years day, after a glitch in customs and Border Protection computers created long wait times. Frustrated passengers posting long lines in miami, jfk, atlanta and san diego. The twohour outage leaving the computers Processing Technology unable to recognize who was a citizen, a resident or a visitor. Forcing traveler like this couple in dallas, to abandon the selfserve computers and go through an immigration officer. One wasnt printing the receipt. It was just one was speaking german and thats it. It was crazy. Reporter u. S. Customs released a statement overnight saying they do not know what caused the glitch. But theres no indication the Service Disruption was malicious in nature. But it was enough to leave weary travelers disgruntdisgruntled. There was 45 minutes we didnt move. Children crying. People sitting down. People sitting on the floor. It was pretty awful not to know what was happening. Reporter no fun. Customs and Border Protection says it took immediate action to process the disruption. All cbp stations are back up online at airports nationwide. Guys, back to you. Tom, thank you. Ahead on this busy tuesday morning, it is back to work at the white house for President Trump, after his holiday break in florida. Theres a lot on the president s plate to begin 2018, here at home and abroad. National correspondent Peter Alexander has the latest on that. Good morning. Reporter huge congratulations, hoda, as well. New year, same set of complex challenges for the president. President trump will have to respond to a move that could put a wedge between the u. S. And its ally, south korea. With kim jongun calling for direct talks overnight and south korea proposing the talks next week. What, if anything, is the president willing to do after more violence in iran. President trump returning to the white house as protests in iran intensify. Iranian state media reports that nine more people died overnight, bringing the death toll to 20 for the last week. Protesters are venting anger over spiking good and gas prices. Some are calling out the supreme leader. The demonstrations, the largest in iran in a decade. President trump supporting the protesters, tweeting, the greater iranian people have been repressed for many years. They are hungry for food and for freedom. The wealth of iran is being looted. Time for change. In another tweet, accusing irans regime of engaging in terrorism. Irans president fighting back. Government and people solve problems together. One who calls the iranian nation a terrorist does not have the right of compassion for our people. Top republicans urging President Trump to do more. You just cant tweet here. You have to lay out a plan. If i were President Trump, i would lay out a plan as to how i would engage the regime. Reporter the new year is bringing familiar challenging for the frustration. Kim jongun issuing his latest ominous warning. The dictator sporting a westernstyle suit for his address, insisting the entire u. S. Mainland is in firing ring and adding the button is on his desk. Its not a threat. Its a reality. The president s reaction well see. Reporter this as the Russian Investigation presses forward. The president blasting an inquiry last week. Refraining from firing Robert Mueller himself, saying, i think he will be fair. Asking if he would open the email investigation of clinton, i have every right to do what i want to. Former fbi director james comey, fired by President Trump last may, taking a swipe at his old boss. Tweeting, here hoping 2018 brings more ethical leadership, focus on the truth and lasting values. And the president up early this morning, tweeting about iran. Hell spend much of this week hashing out his strategy, moving forward on Critical Issues overseas, and also at home, immigration and infrastructure. Hell sit down for lunches with the Vice President , the secretary of state and defense secretary jim mattis, as well. New details about the gunman who opened fire on new years eve, killing one officer and wounding four others. Steve patterson is in littleton, colorado, with that story. Reporter good morning. Youre about to see new video of the expected gunman who recorded himself just moments before that mass shooting, including a call to 911 Authorities Say he opened fire without warning. Im not sheer to hurt anybody. But i have firearms. Reporter this morning, chilling video of suspected cop killer, matthew reel. Taken just moments before he opened fire on police in suburban denver. Leave me alone. Get out. Reporter in the videos obtained by kusa, the former lawyer and soldier records himself calling 911, saying he had been the victim of a domestic assault. I appeared for my health and my safety. I have some firearms. Reporter when the deputy shows up, he appears agitated. I was assaulted and you didnt help me. Reporter he slammed the door and fired 100 rounds of them, killing zach parish, a husband and father of two. One deputy down inside the apartment. All of us have been hit at least one. Reporter reel died in the shootout. Four more officers were wounded. He was spent over zach to try to pull him out. Thats why the bullet went through his body. Reporter Law Enforcement says serious red flags about riehl had surfaced earlier. Colorado authorities were warned after riehl coaposted threat tl about professors online. He was making statements that were indicative of having major health concerns. Reporter Colorado Police checked on riehl but found no threat. A slain officers widow paying tribute with her young children. I will do everything in my power, zach parish, to honor you. And i will raise these guys to love you. Reporter and the communitys left wondering if more could have been done to prevent this tragedy. Three of four officers wounded in that attack have been treated and released from a local hospital. Police are look for any reason that riehl would open fire. Thank you very much. We are learning more about a tragic plane crash to costa rica that killed ten people. Gabe gutierrez has the latest. Good morning. Reporter one family was from florida. The other from suburban new york. Both on Family Vacations over the new years holiday, that came to a tragic end. This morning, the grief is overwhelming. Friends and family in scarsdale, new york, remembering the steinbe steinberg family. Its devastating. We were good friends with them. Reporter bruce, irene, and their three sons. Very diverse, multitalented family that will be deeply missed. Reporter they were among the 12 People Killed when a small, singleengine plane slammed into a mountain in costa rica. Two local crew members and ten were onboard. Including mitchell and leezly weiss, doctors from the tampa, florida, area. Also, amanda gueisler, whose company organized the flight. She was loved by many. Can you see all of the smoke . Reporter an eyewitness described what happened after the plane took off. It went up and all of a sudden, it beared to the left and nose dived right in front of us. Reporter the charter plane belonged to nature air. In september, two passengers were killed when another one of its flights crashed into a river. Authorities say the aircraft in sundays crash had been inspected a month ago. But strong winds had delayed its landing earlier in the day. Backroads says its extremely heartbroken over this horrific loss of life. Trying to digest it. A family goes on vacation and they dont come back. Reporter the travel company backroads says its conducted tours in costa rica for 25 years. Its working with local investigators to find out exactly what went wrong. All right, gabe. Such a heartbreaking story. Were going to shift gears now. Well turn to college football. The stage is set for next mondays National Championship game. It will be georgia taking on alabama. Those teams advance to the title game, after picking up big wins in the semifinals last night. Lets start with the rose bowl. People calling this an instant classic. The back and forth battle tweenl georgia and oklahoma finally ended on doubleovertime. Bulldogs win it, 5448. In the sugar bowl, alabama and clemson. This was all crimson tide. They won it easily. Alabama heading back to the National Championship game for the thirdstraight season. This guy was at the rose bowl watching the bull dogs do their thing. That was unbelievable. You had to leave before overtime . I had to catch the red eye. I was giving him the update from the plane. Lets check your forecast real quickly. We have mild and dry weather through the southwest. Blustery conditions around the great lakes. Rain will be moving into the Pacific Northwest in 24 hours or these women have trusted their soaps for years. This is the soap i grew up with i use this every day i feel clean, there is no film like theres nothing left on my skin but are their soaps as clean rinsing as dove . Im not sure what this is for. This is my soap something is left behind and i dont like that. Dove is clean,. Very clean. My soap,. Dove. Clearly dove is cleaner rinsing im convinced. Im absolutely gonna be switching to dove. Dove cleans beautifully good morning, im meteorologist bill henley. If youre heading out, bundle up. It is cold and will be cold all day long. The cold breeze making it feel like teens. For new jersey, 26 degrees inland. Just a degree warmer at the shore. The wind will be blowing and make it feel like teens through the afternoon. The Lehigh Valley, just 23 degrees. Warms to 28 in delaware. Have a great day. And tha and that is your lat weather. Al, thank you. Chrissy teigen and john legend firing back after their family is dragged into a bizarre and false conspiracy theory. Well hear from them. And californias green rush as legal weed arrives in the golden state. First this, is today on nbc. We salute those who fumble. If gravitys your biggest fan, its ok. We understand. Theres a little klutz in all of us. Thats why we made clorox splashless bleach. 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