Nuclear attack. United Nations Security Council called an emergency meeting today. South korea suggests it was an atomic bomb. In the west, the first major el nino storm slammed california with record rain. Flooding roads, stranding motorists. I cant move every time i think about those kids, it gets me mad. President obama announces executive orders tightening up the sales of firearms. Republicans push to respond. We are safer because we have law abiding citizens. Deadly attack in afghanistan. A u. S. Service member killed and two others wounded during an taliban. Donald trump went after ted cruz and the fact he was born in canada. Well, i tweeted out a link to fonzie jumping the shark and i think im going to stick with that tweet. Tonights powerball soars to 450 million. This is the Winning Ticket. Jewelry store thief on a fivestate crime spree appears to have pulled off her sixth heist in north carolina. High School Basketball coach appears to headbutt a referee. Its not clear if this coach will face disciplinary action. A driver losing control of his car on a dash cam video. The driver posted this video on monday to promote car safety. Oh, no on cbs this morning. A group of radical extremists have taken over federal buildings in a remote building in oregon. The militia say they are ready for the response. You have guys holed up in a building out of nowhere and nobody coming out. Isnt that what prison already is . Announcer this portion of cbs this morning sponsored by toyota. Lets go places the United States has a new and powerful reason to worry about north korea. The secretive nation, this morning, claims it successfully tested its First Hydrogen bomb. Earthquake monitors picked upper measured at 5. 1 in magnitude. But many experts are skeptical. They say the explosion was much smaller than what an hbomb detonation would produce. This is north koreas fourth claim of a nuclear test and the first since 2013. In a statement, the white house says the u. S. Will respond appropriately to any north korean provocation. Seth doane is in beijing where the Chinese Government is denouncing the test. Seth, good morning. Reporter good morning. That test really took north koreas neighbors here in the region by surprise. Those initial reports of an earthquake, it turns out, it was seismic activity, but it was manmade. On state tv today, north korea miniaturized Hydrogen Bomb was a perfect success. North korea took aim at the u. S. And said the test was a selfdefense measure. The explosion, which registered as a magnitude 5. 1 quake, took place near an area where Nuclear Tests were carried out in 2006 and 2009 and 2013. In south korea south korea citizens watched nervously. The military cast doubt on whether the explosion was big enough to be a Hydrogen Bomb. North korea is infamous for its saber rattling but a Hydrogen Bomb would be a major advance in technology. Its nor powerful and more difficult to make than an atomic bomb. North korean tv showed what is a personal note from the lead kim jongun signing off on the when we were in north korea in october, it appears relations with china were warming, its biggest ally. China sent a military official to the military parade we attended but, today, china joined neighbors in the region and strongly condemned the nuclear test. Can we expect to see anything other than word . Will there be some action on chinas part . China has been making active efforts towards the goal of peninsula denuclearization in words and in actions. Foreign affairs spokesman said it requires effort from all parties. U. S. Government says it is trying to determine whether, indeed, this was a Hydrogen Bomb. The test prompted an emergency meeting of the united Nations Security Council which is set for later today. Charlie. Thanks, seth doane in beijing. Cbs News Senior National now a member of the council on Foreign Relations task forces on north korea. Juan, good morning. Good morning, charlie. Reporter let me begin with this. How long will it take for the United States to determine if this was an hbomb, a Hydrogen Bomb and if they have confirmation, what will it thank chang . Charlie, this could be a gamechanger if it finds out it is a Hydrogen Bomb. This will take weeks to determine what happened. We dont know for sure, yet. If it was a Hydrogen Bomb it would leap forward for north korea and much more powerful weapon and if they are on the verge of militarization that means they are close to put that on a warhead and potentially deploy it well beyond the korean peninsula. What is the key question in terms of ability to launch. What strike capabilities do we have . Recently some launch Ballistic Missiles and they have been trying to develop other ba ballistic capabilities. Analysts dont think they have reached the stage of being a successful Missile Program but they are advancing and not just there, but advancing with a Nuclear Program. Whether or not it was a Hydrogen Bomb, this is an advancement in their Nuclear Program. Juan, why would they do it and what can you tell us about the leads kim jongun . Well, gayle, we dont know much about the leader. He is erratic and inexperienced. The most contact we have had with him is through dennis rodman, and so this is a regime and a kim dynasty about its stability and projecting strength. Both internally an sternalexternally. They have used Nuclear Program and military test to deterring what they want at the negotiating table. For now, we are not in negotiations and this is a very dicey. We will be following if. Thank you, juan zarate. The two leading republican candidates are having their sharpest clash of the campaign this morning. Donald trump told an interviewer that ted cruz could face legal trouble as a gop nominee because of where he was born. Cruz responded with a suggestion that the Trump Campaign is going downhill. Major garrett is covering the republican race in manchester, New Hampshire. Oh, boy and good morning, major. Reporter good morning. Donald trump has gone birther again. This time on ted cruz. Openly questioning whether cruzs birth in canada may lead obstacles to his bid in the white house. Trump said this in a tiny town in New Hampshire and said nothing about this before the hundreds of supporters who shivered outside in the cold for hours before seeing the high school packed to see the donald trump is acting like a politician in peril. Hitting ted cruz on an issue he once dismissed. People were worried if he wasnt born in this country, which he wasnt, he was born in canada. The problem is that if the democrats bring a lawsuit, the lawsuit could take years to resolve and how do you have a candidate where there is something, you know, over the head of the party and that individual. Reporter trump then pretended he wasnt trying to take cruz down a peg in iowa where the two are locked in a battle for first. I hope this would not be a reason for disqualification. Reporter before appearing with cruz in september, trump said cruzs birth was nonissue. Cruz was born in canada to an American Mother and making him a u. S. Citizen. His family moved to the u. S. When cruz was four. Cruzs response is to fonzie jumping a shark on happy days a tv show, representing an entertainment phrase gone hopelessly stale. Fonzie jumping the shark and im going to let the rest of yall battle it out. Reporter on the battle front of tv ads, cruz tried to tap the same vein of frustration trump has inspired. Politics of it would be very, very different if a bunch of lawyers or bankers were crossing the rio grande. Reporter Chris Christies super pact trying to close the gap with trump in New Hampshire produced this ad on the prison in guantanamo bay. Keep every rotten dangerous terrorist who is there and never left let them go. Reporter accuracy is attacked by lots of republicans here not named trump and he is pushing back saying jeb bush has curby time as Florida Governor and unfit for the white house. And the Washington Post responding to a slew of negative ads from a super pact supporting rubio that rubio cannot, quote, slime his way to the white house. Major, thanks. President obama says he is taking common sense steps to gun sales. His announcement brought a rare show of emotion from the president but, this morning, his executive actions face Strong Political opposition from republicans and a few democrats. Margaret brennan is at the white house where the president spelled out his plan to bypass congress. Margaret, good morning. Reporter good morning. Well, president obama mourned a wave of gun violence in america and said he is trying to tighten restrictions on gun sales. The moment became one of the most heartfelt speeches of his presidency. The president wipes away tears while remembering the 20 schoolchildren killed in newtown, connecticut, three years ago. First graders in newtown first graders. Every time i think about those kids, it gets me mad and, by the way, it happens on day. Reporter flanked by the relatives of shooting victims, the president announced stricter gun rules that white house Officials Say he can approve without approve from congress. The executive actions require all gun dealers to be licensed and conduct background checks. Would hire 200 additional atf investigators to make background checks more effective, and dedicate 500 million to Mental Health stream. Utah republican Jason Chaffetz called the president s move an abuse of power. The president cant un unilaterally make up new laws. The only thing the average american has heard about background checks is the reporter the president said after watching the National Rifle association to Lobby Congress to kill Gun Legislation shortly after the newtown massacre, he had no choice. Thats why we are here today. Not to debate the last mass shooting but to do something to try to prevent the next one. Thats not going to be enough. Reporter former atf director michael bucchard making background checks will not prevent the next shooting. We have been understaff a number of of years. I dont think it will make much of a difference. Reporter white house officials admit these are, at best, modest proposals for more regulation, but say its the most the president can do without help from congress. Margaret, thank you so much. El nino is threatening parts of the west this morning with more dangerous weather. Heavy rain and high winds will take aim at california. Todays storm is the second in a series of systems. Six inches of rain could fall by friday. Some drivers around los angeles had to ditch their flooded cars reported tornado nearby. Ben tracy is next to the Los Angeles River. Ben, good morning. Reporter norah, good morning. We are catching a break from the rain right now but we are expecting another round of these el nino storms. Take a look at this. The l. A. River which, yesterday, rose by about ten feet and has dropped all the way back down, but just this morning, we are expecting the river to start rising again as the rain returns opinion the Los Angeles River was rushing with rapid. Water levels rose from less than an inch deep Tuesday Morning to several feet by midday. Overnight in san diego, lifeguards rescued two homeless men rising in the san diego river. We were hitting logs and debris in the current and at one point swept in the current down with them and we got spun around around. Reporter as much as 3 inches of rain fell across parts of Southern California on tuesday. Snarling traffic on muddy roadways and sending stranded i saw cars going through it, so i thought, oh, i im fine, until i foltelt my car slightly lift off and then i felt all the water and i cant move. Reporter reports of tornado in l. A. County blew out roofs and windows in eight commercial buildings. The strong winds downed power lines and sent debris crashing into wishleds. Ndshielded. The heavy rain in Southern California is now threatening danger mudslides. Ed heinlein has instructed retaining walls around his home. Likely the house will be shoved into the street and the county will be coming out to pick it up. Reporter in the sierra first half mountains, snow is a concern and causing two feet to fall today and not stopping truckers to plow through. You have to do it to get the freight on the other side. Reporter there is, of wild weather. After four years of drought, california needs all of the rain and snow it can get. Gayle . Thank you very much, ben. The threat of flooding in tennessee is prompting officials to go doortodoor in memphis warning people to get out. Flood warnings in place all along the mississippi river. The rising water is already blamed for at least 25 deaths in illinois and missouri. Residents fear sewage and toxins are mixed in with the water inside of their home. The fbi is asking the public to complete the picture of what the San Bernardino killers did after the deadly attack. Investigators pierced together a time line from december 2nd, the day Syed Rizwan Farook and Tashfeen Malik murdered 14 people and wounded 22 others. After the shooting around 11 00 a. M. , an 18minute gap in the nearly four hours until the 3 00 p. M. Gun battle in which the people died. The fbi is trying to account for pair made an unknown stop or talked with others that the fbi wants to interview. On tuesesy, tonya couch appeared before a los angeles judge and waved her extradition. Her son is still in mexico fighting deportation. Mireya villarreal is in los angeles where tonya couch was sent after she was deported from mexico. Reporter good morning. Law enforcement officials here in los angeles are now working with texas authorities to coordinate tonya couchs return. The details of that transfer will not be made public for security reasons, but once she reaches a texas jail, she will face a Million Dollar bond. Tonya couch was barely visible as she stood behind a partition in a los angeles courtroom on tuesday. After spending nearly a week in a california jail, the 48yearold mother agreed to be extradited. Her back to Tarrant County and facing thirddegree follow knee charge for allegedly helping her son escape to mexico. Im hoping if everything goes smoothly later this week we will get her back here. Reporter in mexico city, ethan couch had a meeting of his own. Reporters swarmed his highpowered Mexico AttorneyFernando Benitez as he entered the celebration city where couch is being held. Very respectful. Does he want to go home . Reporter benitez didnt say much about their visit but confirmed he spoke with couch about his return to the u. S. Im not at liberty to disclose what we talked aboutship im so sorry. Reporter couch and his mother entered the country in december. At one point the teenager visited this Puerto Vallarta strip club. Still unclear when couch will return to texas. The troubled 18yearold was sent to ten years of juvenile probation in ft. Worth for killing four people at a 2013 drunk driving car wreck. Probation when he fled to mexico in december. Ill be satisfied when we have them both locked up here. Maybe we can take a little bit of justice for those families and those people who were killed. Reporter couchs attorney in mexico is asking that he be extradited and not deported. If that happens, that extradition could take several months to get ethan back to the u. S. An arrest in a road rage killing of a College Student we have been reporting on. And how some video inside a announcer this portion of cbs this morning sponsored by boost nutritional products. Stay strong. Stay active with boost. A maker of popular brain games will pay millions over allegations it misled customers. Ahead how the settlement could result in the brain the news is back this morning. If youre running a business, legalzoom has your back. Over the last 10 years weve helped one million Business Owners get started. Visit legalzoom today for the legal help you need to start and run your business. Legalzoom. Legal help is here. The flu virus hits big. With aches, chills, and fever, theres no such thing as a little flu. And it needs a big solution an antiviral. So when the flu hits, call your doctor right away and up the ante with antiviral tamiflu. Prescription tamiflu is an antiviral that attacks the flu virus at its source and helps stop it from spreading in the body. Tamiflu is fda approved to treat the flu in people two weeks of age and older whose flu symptoms started within the last two days. Before taking tamiflu, tell your doctor if youre pregnant, nursing, have Serious Health conditions, or take other medicines. If you develop an allergic reaction, or signs of unusual behavior, stop taking tamiflu and call your doctor immediately. Children an