And midwest mess. The first big snowstorm of the season. Over 20 million americans in the bullseye. Driving, treacherous. Flights canceled. All of this just before the holiday. Were in the middle of it tracking the storm. Hey, good morning. We have two developing stories. Officials are hunting for more than three suspects in the african country of mali this morning after armed gisellemen stormed a Luxury Hotel Opening fire. The American Mother killed in this attack. We are going to start with the breaking news out of belgium. Brussels is on a security lockdown with the government warning about the possibility of a coordinated Terror Strike similar to what happened just a week ago in france. The country directly to the south of belgium. In brussels the subways are closed the heavily armed soldiers deployed and lama hasan is right there. Good morning. Reporter good morning to you, dan. The threat of another terror attack here in brussels is being called credible, serious and imminent. In fact, just a short while ago the belgium Prime Minister saying there was a threat of using armed and explosives carried out at numerous occasions. Thats why they raised the threat level to its highest. U. S. Embassy warning a shelter in place telling the public to stay away from large gatherings. Some of the soccer matches have been canceled. The subway system shut down and the military behind me guarding some of the big, large stations in this area. And this is why theyve been deployed. Seeing more and more soldiers, more armed guards trying to keep the city safe and so everyone here is on high alert. Meanwhile, the only surviving gunman from those attacks, Salah Abdeslam is still on the run and believed to be hiding somewhere here in belgium. Paula. All right, lama. You just mentioned salah. He is still on the loose as lama just said and how s. W. A. T. Teams in france were nearly lured into a trap by a woman in that apartment during the big raid. Abcs matt gutman has the very latest for us from the french capital. Hi, matt. Reporter hey, good morning, paula. Just moments ago turkish officials telling us they arrested a Belgian National suspected of being the lookout on one of the attacks in paris as they learn more about how some members of that terror cell infiltrated europe possibly blending in as refugees. Overnight we learned two of the three bombers who initiated that grisly series of attacks during this game, both passed through greece on the same day, october 3rd starting off in the same greek island of leros as so many other refugees. 800 raids in france alone hunting for Salah Abdeslam believed to be the man blasting away in this video obtained by dailymail. Com. Friends of his said he called them this week asking them to help him get back to syria. On the run from western authorities and according though those friends hearing retribution from isis for not detonating his suicide vest. They work to identify a third man killed in this apartment wednesday. Thousands of bullets fired in a raid targeting paris attack ringleaderboard abaaoud. It took police over 24 hours to identify his dy, that of 26yearold hasna aitboulahcen, who s. W. A. T. Teams initially tried to convince to surrender. Where is your boyfriend . Hes not my boyfriend. Where is he . Hes not my boyfriend. Speaking exclusively to abc this man said the recentlial callized aitboulahcen tried to lure his men upstairs. Started to throw grenades through the windows, through the door when it opened so tried to kill us. Reporter one of the three assailants detonated a suicide vest moments later. Blasting debris and flames out the windows. Service so big, huge explosion. We knew that they could do it again, against us. Reporter over an hour later, snipers took out the remaining suspe suspect. A lot of people wondering how those terrorists were able to move so freely inside western europe. Well, once here there are no border checks. You dont have to show a passport or i. D. When traveling between countries. Its a lot like traveling between states back in america. Dan, paula. There is talk about whether that should change, matt, thank you. To the other country in a state of emergency. Mali in africa where terrorists 120r78ed a hotel popular with westerners taking hostages and reportedly killing almost 20 people including an american mom, there she is, a Public Health expert and abcs Alex Marquardt is there with the very latest. Alex, good morning to you. Reporter good morning, dan. This is the hotel where the attack took place considered to be one of the safest in the country popular with tourist, Business People and diplomats which these attackers were posing as when the deadly rampage started. This morning, mali waking up to a tenday state of emergency following the daylong siege at the luxury radisson hotel. Of the initial 170 staff and guests reportedly taken hostage the United Nations tells abc news that at least 19 people were killed, along with two of the jihadist gunmen. We met 28 businessman mukesh who barricaded himself inside a room with his employees. We covered the door with lot of heavy stuff and at some point we heard someone is knocking on the door and lots of bullets. Reporter around a dozen of americans were inside the hotel at the time. Among the dead, aid worker anita datar, a mother and former peace corps volunteer from maryland. We are devastated by the loss of our wonderful daughter doing the work she loves. Reporter traveling in malaysia president obama condemned the attack. This is another awful reminder that the skrourj of terrorism threatens so many of our nations and once again this barbarity only stiffens our resolve report they were armed with guns and grenades and used fake diplomatic license plates to get into the Hotel Grounds at 7 00 a. M. On friday morning. According to witnesses they shouted allahu akbar, god is great. Before opening fire. Sirens blared as mali gendarag n gendarmerie and others were there. Soldiers entered 9 building going floor to floor to escort the hostages to safety leading this group down the hotels grand staircase. One wounded employee carried out on a rescuers back. Friday night malis president gave the allclear and coming firmed the attackers believed to be just two militants were dead. Those three americans who helped with the rescuer from the state and defense departments were told they made repeated entries into the hotel to rest cow those americans would work at the embassy. All are safe but the embassy now telling citizens to limit their movements here. Paula. Thank you, alex. All of this dominating the campaign trail. The political narrative has shifted dramatically to terror and National Security since the paris attacks. Candidates have their own ideas on how to keep this country safe. Some more extreme than others and donald trump now trying to distance himself from a controversial comment he says was misconstrued. Abcs devin dwyer at the white house for us. Hi, devin. Reporter good morning, paula. You know, fear of terrorism here in the u. S. Is now near its highest level since 9 11. The threat from isis and what to do about it have become the top issues on the campaign trail. Anxiety over terrorism is testing the president ial candidates in new ways. Donald trump was asked about setting up a database of muslims in america. Should there be a database that tracks the muslims in this country. There should be a lot of systems. And today you can do it. But for muslims specifically who how do you get them registered. It would be good management. Reporter his answer set off a flurry of condemnation. The federal government keep a registry of any religious group, the answer is, of course, not. I find it abhorrent that donald trump is suggesting we register people. Reporter ben carson said a database of all citizens in the u. S. Is a good idea. Hopefully we already have a database on every citizen who is already here. If we dont were doing a very poor job. Reporter trump later tweeted. I didnt suggest a database. A reporter did. We must defeat islamic terrorism and have surveillance including a watch list to protect america. In i new poll 81 of americans feel a major terrorist attack in the u. S. Is likely and a majority, 54 , are concerned about a potential threat from Syrian Refugees and want them to stay out. In tennessee 1 of 31 states whose governors want to ban them, Hillary Clinton said, it wont help. We got to do what works. And it doesnt work for us to ago like were going to shut our borders and pull up the gang plank. Reporter but president obama says hes determined to allow in at least 10,000 Syrian Refugees this year. Meanwhile, donald trump tried to clarify it saying the only registry he wants is for Syrian Refugees that come to the u. S. With so much concern about terrorism here in the u. S. , and with the thanksgiving travel rush theyre boosting security at airports. Abcs david kerley reports on whats being done to keep travelers safe. Reporter already this morning, the thanksgiving airport rush is under way. More people flying home for the holiday, more than 25 million will take to the air. And in light of the recent terror attacks, many are leery. People are now in fear of whats happened, the new reality. You do think do you really want to fly anymore or better to stay home. Reporter the most recent incident, a reported bomb threat on board a Spirit Airlines jet prompting an immediate return to ft. Lauderdale where a man was cuffed and taken off. But Authorities Say passengers misheard a phone conversation. It was all a mistake. Still, since that russian jetliner was brought down by a bomb, possibly in a soda can like there there have been concerns about the possibility that that bomb was put on the jet by an insider. An airport worker. Could that happen in the u. S. . The responsibility for screening airport workers is left to airports. But this morning, just three of the u. S. major airports have decided that workers should be screened just like passengers. That means a 100 check every employee has to go through devices like this before they can get into a secure area. 34,000 people work at miamis airport and are screened before entering secured areas. And you think it works . I know it works. Reporter miami Security Director says the 3 million it costs each year is a small price. Our threat is we know what we have to do with that. Reporter some wonder whether its time to require at all airports for good morning america, david kerley, abc news, washington. Peace of mind is worth that extra time in the tsa line, david, thank you. Heading into the holiday week weather could be a problem. It already is in chicago where look at this, a monster prewinter storm has been hammering the midwest getting socked with heavy snow and abcs phillip mena attempting to drive in all of this. Hi, phillip. Stay safe. Can i just say that . Reporter we are right now and good morning. We are in libertyville about 40 miles north of chicago where the first snowstorm of the season is hitting just as many of us are hitting the roads for the thanksgiving holiday this week. And even though there are snowplows that have been out all night trying to clear the roads as you can see its still pretty treacherous out there. This morning, 20 million americans in the midwest and Northern Plains hammered by the first widespread wallop of Winter Weather. I cannot tell you in this neighborhood how many people i pull out of ditches all the time. Reporter the chicago area just one of many major cities hit by more than 6 inches of snow. In iowa treacherous whiteout conditions proving to be problematic. This woman losing control of her car plunging into an icy river. Emergency crews rushing to the scene. Pulling her to safety with only minor injuries. The snowfall spreading across parts of 12 states from wyoming to michigan. The Winter Weather taking some by surprise. Yesterday we were picking up leaves and today were plowing a foot of snow. Reporter overnight collisions in south dakota piling up as report breaking snowfall leaves motorists stranded as officials responded to 66 reported accidents in just three hours. As the temperature continues to drop these driving conditions will only become more dangerous and this area is expecting freezing temperatures in the coming days and, of course, thats when these roads can ice over and things can get really dangerous. Dan. As paula points out youre behind a salt truck which is probably the safetiest place to be driving. We init tend to stay that way. Good. We hope you do. And that huge storm is on the move now and its gar ring eastward and rob is, of course, tracking it all. Good morning, sir. Not only the salt but being the first big snowstorm of the season the ground is still relatively warm so to stick on the roadway. Look at that swath of heavy snow from just outside of chicago to southern parts of wisconsin. We saw 16 inches in southern south dakota and a foot of snow in iowa and this will continue to push off towards michigan getting into detroit later on this afternoon and theres that cold air behind that wants to get lakeeffect snow and now warnings for buffalo and Winter Weather advisories for michigan and winter storm warnings for parts of illinois including caught and south of milwaukee. Localized over a foot of snow but a good swath of 5 to 10 inches from Northern Illinois in through parts of michigan. Definitely colder behind this, windchills below zero tomorrow morning in chicago. Well talk more about that in just a few minute, dan, paula. We dont like to see snow. Not even december. Feels wrong. But we do like to see ron and youve been tracking the other stories overnight. Ive been up all night. All night. All day, all morning. All night. Good morning, everyone. A utah man under arrest charged with bringing an explosive device into a Federal Building in salt lake city. The Wallace BennettFederal Building evacuated after security screeners found it known as a cricket bomb inside the suspects jacket. That man Brandon Evert bushnell here for a Social Security administration hearing. Jonathan pollard convicted of spying for israel released from prison after spending 30 years behind bar s within hours of his release they went to court to challenge the terms of his parole which includes being required to wear an electronic gps ankle bracelet. A terrifying afternoon for more than two dozen children. A school bus in texas, that bus bursting into flames and exploding. The veteran bus driver is praised for his quick actions in getting off 30 kids out of that bus safely. Says he heard a sound, smelled smoke and then grabbed the vehicles fire extinguisher and tried to put out that fire. No word on what caused it. Watch this. Dozens of High School Football players in miami fleeing the field they heard gunshots in the distance. It was held at the miamidade colleges north campus. That was friday night. It was ended early. Five people taken in by police for questioning. No one luckily was injured in that incident. And elon musks spacex signed a deal with nasa to launch astronauts into space. It was approved even though his failed rocket launch happened. The first private company led mission to space is planned for 2017. Sara will be on board with her baby. Yes, ilg. And take a look at this. A clever brown bear figured out how to open nearly all of the doors of this car parked in the Great Smoky Mountains in tennessee. Its unclear whether the cars front door was opened by the bear prior to filming or if the curious animal sneaked up on the car while the people there were unpacki unpacking. Finally, president obama is used to taking political jabs but theres one question that apparently really gets under his skin. A malaysian student was trying to ask a question about how to make older generations communicate better with younger people. Since yourself is aging to a very senior life, what do you want to see from young People Like Us in the future when you get old . Well, the first thing i want from young people is to stop calling me old. I came in office, i had no gray hair. I dont dye my hair and a lot of my fellow leaders do. I dont dye my hair either. The president did not disclose, though, what leaders he was referring to as dyeing hearsaying thats between them and their hairdressers. Its actually a colorist. Its a colorist. Just want to point out im waring this purple tie for National Pancreatic Awareness Month and shoutout to our friend camille moses, three years and going strong after being diagnosed with pancreatic cancer. Ft. Lauderdale, florida. Nice work. We should point out your gray wasnt gray before you started this show. I like your hair better this color than it was really. Its a progressive. You look fine and distinguished. Not going back. Authoritative. Pa tur. Distinguished. Im digging it. Couple more grays on dan, he would look like a full adult. Wow. Wow. My colorist has taken good care of me. Two seconds for weather here. Here we go. All right. Just did a little earlier. Because you guys are begging for more snow. No, were not. No, here you go. Behind the system bringing that know to the brakes, snow falling on the back side through kansas and colorado. Maybe even down oklahoma might see flurry, as well. Windy and cold air is coming down and get yourself in the mood for wind advisories in effect for oklahoma, both Oklahoma State and theyre playing in norman today. Its going to be windy to start and dieing off later today but strong winds to houston and where the chilly temperatures are, obviously make it feel even colder than that. Freeze warnings out across the south. That means that the growing season pretty much is over so this cold blast will infiltrate just about everyone in the eastern and lower twothirds and coupl