it's friday, february 12th. coming up on "early today," life threatening wind chills a polar vortex is hitting the northeast and the midwest with a vengeance. bernie sanders took a few punches from the former first lady on debate night. >> the kind of criticism that we've heard from senator sanders about our president i expect from republicans, i do not expect for someone running for the democratic nomination to

>> madam secretary, that is a low blow. >> and the fbi is looking into a deadly machete attack at a columbus restaurant as a possible terror attack. plus, dozens killed at a massive riot at a mexican prison. and is it really worth risking the zika infection. and plenty to keep you entertained during thiz frozen valentine's day weekend. "early today" starts right now. good to be with you. millions of americans are bracing for dangerously cold temperatures this valentine's day weekend. a polar vortex bringing bone chilling weather all the way down the florida. and whiteout conditions along sections of the new york thru

power lines all coated in ice. i can't even remember we've dropped this low in the northeast. so, i don't even know what that feels like. >> and you're not going to like it either. it's going to be a really, really cold weekend across many spots. we are looking at some dampg ngerous cold. this is the leading edge of the arctic air. 19 below for the wind chill in international falls and normally that would stay up in northern minnesota. it will sweep down the south and east and all the places under wind chill alerts. that means how it feels will drop to 35 below zero. that's dangerous cold. you need to layer up. and it looks like areas of the southwest will be in the 80s this weekend.

>> thank you very much. next to politics as the two democratic presidential candidates faced off in milwaukee last night. from civil rights and even henry kissinger. >> she talked about getting the approval or support or the mentoring of henry kissinger. now, i find it rather amazing because i happen to believe that henry kissinger was one of the most destructive secretaries of state in the modern history of this country. i am proud to say that he is not my friend. i will not take advice from henry kissinger. >> i know journalists have asked who you do listen to on foreign policy and we have yet to know who it is. >> one of the biggest back and forth came when clinton jabbed

>> today senator sanders said president obama failed the presidential leadership test and this is not the first time that he has criticized president obama. in the past he's called him weak, a disappointment. and i couldn't disagree more. the kind of criticism that we've heard from senator sanders about our president i expect from republicans, not from someone running for the democratic nominations to succeed him. >> madam secretary, that is a low blow. i have work would president obama for the last seven years. but you know what last i heard we lived in a democratic society. last i heard a united states senator had the right to disagree with a president, including a president who's done such an extraordinary job. so, i have voiced criticisms, maybe you haven't. i have.

critics saying only clinton's thwarting history. >> well, you know from a historical point of view, somebody with my background, somebody with my views, somebody who has spent his entire life taking on the big money interests, i think a sanders victory would be of some well. >> and the twitter discussion was a dead tie although sanders got more followers and clinton was able to narrow the gap from the start to the end. and now to the republican race and frontrunner, donden ald group. he took time to autograph a mohawk sporting baby and a bedazled trump pacifier p. .

a heated back and forth with nemesis cruz after he said trump and rubio are with president obama on gay marriage. and he said cruz is a liar and crazy and dishonest. >> reporter: making some 25,000 phone calls a day to topple iowa. >> in the state of south carolina, i don't think people are interested in someone, a republican candidate who's pushed partial birth abortion. >> reporter: cruz's strategy, paint trump as more liberal, with more ad said like this one on the way. >> he pretend to be a republican. >> reporter: for his part, trump seems to be playing a more positive political campaign than before. >> it's going to be such an unbelievable -- >> reporter: but in the more mannerly south, his colorful language may bow

>> it's crass. >> it's not how you want your president of the united states. >> you turn on the tv and you have a leading presidential candidate saying profanity from a stage. >> reporter: marco rubio and jeb bush taking jabs that frontrunners and at each other. >> jeb bush has no foreign policy experience, period. >> reporter: trying to prove south carolina isn't simply a two-man fight. it was a dramatic end to a 41-day armed siege at an oregon wildlife refuge. four remaining wildlife activists surrendered after hours of tense negotiations. david frey had refused to come in. all expected to have an arraignment today.

the public for weeks. meanwhile, the father of two activists taken into custody two weeks ago was also arrested after landing at the portland airport. he faces several felony charges from two years ago in nevada. four people remain hospitalized after a frightening attack at an ohio restaurant. >> that call about a man in a head scarf came in shortly after 6:00 p.m. local time. he entered the nazareth restaurant and reportedly began attacking people with a machete. diners threw chairs and other objects to stop the attack. minutes later, the suspect was stopped and police

him and he then lunged at officers with a machete and a knife and he was fatally shot. as of now they're not calling it terrorism. a prison battle between rival drug gangs in northern mexico. mexican officials say the fight started around midnight thursday between a faction of the infamous zedas gang and another group. authorities say there was no gun fire. the situation is now under control and they have ruled out break. and the riot comes less than a week before pope francis is prison. now over 100 years later, we finally heard this.

looking for. >> those are waves that came from a collision of two black holes, burst 20 times as big as the sun. the waves are ripples in space time, similar to dropping a rock into a pond. the discovery proves the last piece of einstine's theory of relativity. and now meteorologist,ing into the grips of bitter cold. >> we will be inside, the reason why, this polar vortex, or a piece of it, will be heading our direction. a high of only 9 in minneapolis. we'll see the winds relax a bit, yesterday you heard them rattling. it looks like that will subside but tomorrow, throughout the

bitter cold across the country. now a look at the weather where you are. we're look ath showers and lake effect snow in the midwest. and highs only in the single digits and nicer out the west. so, good news, it only lasts about 48 hours. better. >> but it's going to be a brutal 48 hours. new details on the rest of those hillary clinton emails. and smart phones up to 100 times faster than what you may have today. day. i take pictures of sunrises. it's my job and it's also my passion. but with my back pain i couldn't sleep... so i couldn't get up in time. then i found aleve pm. aleve pm is the only one to combine a sleep aid plus the 12 hour pain relieving strength of aleve.

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a massive new jersey warehouse. amid freezing temps, firefighters from at least five towns battled the blaze. fortunately, no injuries were reported. we get down to business. late news about a possible oil deal helped can cut stock losses in half. uber has agreed to pay $28 million in lawsuits brought by riders who say the service misrepresented their safe ride fee as much as 230 per trip. at&t is joining verizon in testing 5 g service. it would make them 100 times faster than they are right now. 5 g should roll out in the next few years. just ahead, the zika virus has some of our star athletes on edge. we'll bring you some of those details next p. if prrs rrs now, revlon introduces a new collection of mascaras

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this morning on "today," just in time for valentine's day, jeff rossen investigates whether science can predict ever lasting love. on thursday cdc announced that puerto rico could be the next hot spot for the zika virus and the u.s. olympic committee

their star players speak out. >> reporter: the u.s. olympic committee announced it's hiring two infectious disease experts to advice the 500 athletes hoping to compete in brazil, including soccer star, hope solo. >> if i had to decide today to go, i wouldn't go. fortunately, they're six months away. sfwlrks >> reporter: the soccer teams will compete in areas more vulnerable to zika, one in the amazon rain forest and another where the zika cases are especially high. >> i don't think the soccer game needs to be that close to the rain forest where there's even more mosquitos. >> reporter: new research found

babies born with microensefally. there were five during the london games of 2012. >> we will be waiting to hear what kind of steps are going to be taken to make sure everything is safe and secure. >> reporter: with women making up half the american team, the countdown to the olympics is on. nbc news, new york. and just ahead, a big valentine's day weekend ahead at the movies. we'll tell you what's hot. plus, combining the amazing guys of okay go, zero gravity. the results, just fabulous. lous. medicare part d prescriptions, walgreens says, carpe med diem. seize the day to get more out of life and medicare part d. just switch to walgreens for savings that'll be the highlight of your day. now preview the cost of your copay before you fill. you can even get one-dollar

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how about some entertainment news now. pop rock band, okay go has claimed they have made their first music video in zero gravity. going viral just yesterday. it currently has over 20 million views online. i would guess that's special effects. but it's the real deal. nbc announced yesterday that the popular day time drama "days of our lives" has been renewed for the 51st season. >> my mother will be very happy. >> a lot of people too. netflix "masters of none" will be returning for a second season in 2017. more binge viewing for you. and hitting theaters today,

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happy friday. thanks for joining us for 9news at 4:30 a.m. corey, gary and cheryl with you this morning. marty-is also joining us from the weather center. marty- today will be a little cooler than yesterday... today columbine