Jet crash. The department of Homeland Security is expected to announce plans to tighten regulations on u. S. Bound flights from international airports. Do you think im a pathological liar like cnn does . Ben carson is on the defense against cnns investigation of his violent childhood. This poll says he would beat you by 10 . Well have to wait and see how that turns out. Maybe you should start saying some crazy stuff. The coast guard is searching for a man who fell off a crews ship northwest of the turks and caicos. Wet weather is expected in the Southern Plains today. A tornado touched down in fort worth. Six People Killed in arkansas when a bus went off the interstate. Its reported Joe Gliniewicz tried to hire a hit man to kill a village official. My concern is my family. A potentially environmental disaster is in the making in brazil. A dam has burst, burying a small town in toxic sludge. Bengals at 80. What are you doing . Proposing. Yes. All that matters. Gods a woman. Well, gods a woman, and she definitely didnt write the bible. On cbs this morning. President obama has found a way to set a positive tone using different variations of the word hate. Good morning, kansas city. Champion. Hey. Hey. Hey. Announcer this mornings eye opener is presented by toyota. Lets go places. Welcome to cbs this morning. Charlie rose is on assignment. Norah donnell is off. In the words of the president , hey. Were in good hands. As you wake up in the west, there is growing concern that a security lapse in egypt allowed a terrorist to slip a bomb on the doomed jet liner. Russian president Vladimir Putin has ordered suspension of all flights to egypt. The crash killed all 222 people on board. President obama told a radio interviewer it could have been terrorism. There is a possibility there was a bomb on board. And were taking that very seriously. Were going to spend a lot of time just making sure our own investigators and our own Intelligence Community figures out exactly whats going on before we make any definitive pronouncements. Meanwhile, british tourists stranded in egypt are beginning to head home. Alex ortiz is at the airport in Sharm El Sheikh with travelers separate to leave. Alex, good morning. Reporter good morning. Masses of tourists have converged on Sharm El Sheikh airport where some evacuation planes have been blocked from taking off because of airport capacity. Many here are still looking for a way home. British planes have begun flying the nearly 20,000 tourists in Sharm El Sheikh after russia suspended flights on wednesday. Sharm el sheikh airport is on scrutiny despite efforts by egyptians to show off its safety measures. Passengers reported lax security. One tourist recounted paying an airport official 30 to skip security altogether. He put the case on the Conveyor Belt and the girl checked us in. At no point did my luggage go through any scanner. Reporter but egypt has accused the british of acting unilaterally without waiting for the investigators report about why the plane went down. We acted on intelligence and information we had that gave us the concern that it was more likely than not it was a terrorist bomb. Reporter egypts president visited london this week. Even he couldnt change the prime ministers mind. U. S. Intelligence has told cbs news they now view terrorism as the leading theory behind what brought down the russian plane, killing all 224 passengers on board and throwing this resort town into chaos. Investigators are still analyzing the black boxes, but people here are speculating about who might have had access to the plane. Routinely, cleaners, baggage handlers and caterers would have had access to the doomed flight before it took off. Alex ortiz in Sharm El Sheikh, thank you. This morning the egypt crash is triggering new security measures here in the u. S. The department of Homeland Security is expected to roll out enhanced screenings for overseas flights as early as today. Kris van cleave is in washington with what travelers can expect. Kris, good morning. Reporter good morning. Sources tell cbs news discussions were under way thursday about the exact measures to take, how, and where to increase security. Out of an abundance of caution, the Transportation Security Administration will put some procedures in place to heighten security for overseas flights. An Important Note here, no u. S. Airlines directly serve this region of egypt. However, one concern is the potential for an explosive to slip through screening at a remote airport and make its way onto an americanbound airliner. The underwear bomber, for example, left africa and connected through amsterdam where he boarded a flight to the u. S. Yesterday president obama said the u. S. Is taking the possibility of a bomb on board a Russian Airliner very seriously, adding, we know the procedures we have in the United States are different than some of the procedures that existed for outbound and inbound flights there. That difference between screening procedures here and abroad is a key concern for u. S. Security officials. Anthony . Kris, thanks. Security analyst juan zarate is in washington. Juan, good morning. Good morning. What do you make of stepping up security on u. S. Flights . The u. S. Has to do something. The threat is real. Obviously we dont have flights coming in and out of Sharm El Sheikh into the u. S. But the fear that some luggage, cargo, could slip through and affect an aircraft headed toward the u. S. Is very real. In addition u. S. Officials are worried about this question of who has access to these aircraft that could be headed to the u. S. And thats a very real risk and threat. Juan, the u. S. And britain are certainly leaning towards the bomb theory. Egypt and russia seem to be saying, not so fast. What does that say to you . Gayle, the conclusions have consequences. You see each country elevating the risk on their own. The uk obviously has 20,000 tourists on the ground. Theyve been stung by terrorist attacks on their tourists in the past. Each country is elevating the risk based on the consequences. For egypt and russia, the consequences are extremely high if in fact there was a terrorist attack that brought down the airliner. Each country is elevating and determining the data on their own based on their calculations of risk. If isis did target this russian plane with a bomb, i mean, what are the implications here . This is a game changer. If in fact isis brought down this russian aircraft, it means that the threat from isis is no longer just contained to the environment of syria and iraq, but it has a more global dimension. It means that the u. S. , russia, and the west have to worry about all of the isis affiliates that are cropping up around the world, places like libya, yemen, even afghanistan. It does then raise the question, do we have enough time to deal with what may be a metastasizing threat, and frankly, do we have a new global war on terror, this time not against al qaeda but perhaps against the islamic state. How likely is it that well ever be able to determine what happened here . Can we trust the information were getting from russia and egypt at this point . We dont have u. S. Experts on the ground, unfortunately. We have to wait for the egyptians to invite our experts in. Were certainly elevating data that we have. Obviously the satellite coverage has provided some of that data with respect to the heat flash which led to the conclusion that there was an explosion on the aircraft. Were going to have evaluation of intelligence from the outside. So well be able to evaluate the data in the report as it comes in from egypt. But we dont have our folks on the ground. Juan zarate, thank you for joining us this morning. Heavy downpours and suspected tornadoes have hit texas and oklahoma, hammering cars and buildings there. Those strong thunderstorms are now moving across the mississippi and ohio valleys this morning. Omar villafranca is in fort worth where a large building was literal literally shredded. Reporter good morning. The roof came smashing down into the parking lot. Large sheets of metal came tumbling down. But the good news, no one was hurt. The roof of the building just blew off. A likely tornado ripped through the roof of this Office Building thursday, sending sheets of metal debris flying through the air, wrapping around cars, smashing out windows, and terrifying the employees inside. We want into panic mode. We ran out. We went into a bathroom. Ive never been in a tornado. Its off my checklist now. Reporter overnight torrential rains pummelled denton, texas. Flash flood warnings were posted in corsicana. In fort worth, a steady stream of violent lightning strikes lit up the night sky. Violent winds were Strong Enough to knock over trees in oklahoma and pummel decatur with baseballsize hail. At least three tornadoes were reported in texas, where the wicked weather even put football on hold. High winds toppled these stadium lights in ponder. No one was hurt. I think were very blessed. Ive seen a lot of weird things. This was certainly unusual. Reporter the forecast here in fort worth looks promising for the rest of the day. Overnight an inch of rain fell in less than an hour, prompting rescues after flash floods. Thank you, omar. A bus crash in arkansas killed at least six people overnight. Police say the charter bus veered off interstate 40 and slammed into an overpass. Several others from this group in michigan are in the hospital. The collision crushed the roof and the back of the bus. The cause is under investigation. A president ial campaign taking a new turn for the top two republican candidates. The department of Homeland Security confirms donald trump and ben carson are Getting Secret Service protection. Carson is also gaining more attention for new comments about a violent story from his youth. Jan crawford is in washington. Jan, good morning. Reporter good morning. Carson is taking hits from republican opponents and the media about whether hes made up part of his life story. Thursday night, carson pushed back. Those claims are absolutely true. You know, i am 100 sure theyre true. Reporter ben carson says accounts of an angry, violent youth are true, including an attempted stabbing. The person that i tried to stab, you know, i talked to today. And it was a close relative of mine. Reporter but a cnn report suggested otherwise. Cnn has been unable to locate witnesses or victims. Do you think im a pathological liar like cnn does or do you think im an honest person . Reporter carsons telling of that story over the years has evolved. In his 1990 autobiography carson says he tried to stab a friend, not a relative. The book was adapted into a 2009 film. The stabbing, attempted stabbing incident occurred when i was 13 or 14. Trying to hit my mother in the head with a hammer, that was around the same time as the stabbing incident. Reporter republican rival donald trump blasted the retired neurosurgeon on twitter, saying that carsons story is either a total fabrication or if true, even worse, trying to hit mother over the head with a hammer stabbing a friend . As carsons poll numbers grow, so does the scrutiny. My own personal theory reporter on thursday he defended his 1998 remarks that the egyptian pyramids were built by joseph to store grain. That something i think people should know about . Some people believe in the bible like i do. And dont find that to be silly at all, and believe that god created the earth and dont find that to be silly at all. Reporter it might seem strange to see someone insisting these bad things from his past are true. But thats been a big part of carsons personal story of redemption. He often talks about how as a teenager he was saved from a life of violence when he found god, that his anger just went away. Gayle . Thank you, jan. The next republican president ial debate will have a smaller field. That leaves some of the candidates left out. Tuesdays prime time debate on Fox Business Network now features john kasich, jeb bush, marco rubio, donald trump, ben carson, ted cruz, carly fiorina, and rand paul. Chris christie and Mike Huckabee are relegated to the early debates because of low poll numbers. Theyre appear with rick santorum, bobby jindal. Candidates Lindsey Graham and George Pataki have been dropped completely. Fox business says their poll numbers are just too low. John dickerson Interviews Trump and carson this fund on face the nation. Hell speak with kirsten gillibrand. John will moderate the cbs news democratic president ial debate. Watch it right here on cbs. This morning jeb bush is rejecting new criticism of his brothers Vice President and defense secretary. The criticism comes from his father. In a new biography president george h. W. Bush offers strong opinions on the administration of president george w. Bush. Nancy cordes is in washington with the newest bush family drama. Nancy, good morning. Reporter good morning. Weve seen the bush brothers disagree with their mother publicly once or twice before. But this is a rare disagreement with their father, who was reluctant to say anything negative when his son was in the white house, but clearly not as reluctant anymore. At the age of 91, the nations 41st president is getting a few things off his chest. Donald rumsfeld, his sons secretary of defense, is an arrogant fellow. Dick cheney, his sons Vice President , is an iron ass. Ive had much worse said about me. Reporter cheney seemed amused by rumsfeld said in a statement, bush 41 is getting up in years and misjudges bush 43, who i found made his own decisions. President ial candidate jeb bush weighed in from New Hampshire and said he didnt share his dads opinion. As it relates to dick cheney, he served my brother well as Vice President and he served my dad extraordinarily well as secretary of defense. Reporter cheney and rumsfeld were two of the chief architects of the iraq war. And thats at the heart of the elder bushs criticism. Bush said rumsfeld served the president badly. I dont like what he did and i think it hurt the president , having his iron ass view of everything. George h. W. Bush and Donald Rumsfeld have not liked each other for 40 years. They were competitors in the ford administration. Reporter this author wrote his own biography of bush and said there could be several reasons he is breaking his silence now. Is the older father thinking, i want to protect my son by making it clear to people that there were some malign influences around him . Perhaps. If you were the son, you dont want your father to say your administration was affected by bad influences, because it means you were weak. It means you gave in. Reporter bush sr. Also revealed in this new book by jon meacham that donald trump expressed interest in being his running mate. Bush said he found that straining a strange and unbelievable. Its hard to imagine trump being anyones number two. It is unusual. Thanks, nancy. Disturbing new details about the disgraced Police Lieutenant who staged his own suicide. Months earlier, lieutenant Joe Gliniewicz apparently tried to hire a hit man. He feared a town official would find out he was stealing money. He also faced allegations of sexual harassment, suspensions, and complaints that he intimidated an emergency dispatcher with guns. The more you hear about this story, the worse its hard to believe. An abducted boy broke a cas, announcer this portion of cbs this morning sponsored by walgreens. At the corner of happy and healthy. Students are accused of collecting nude photos like trading cards. Ahead, inside the School Sexting Scandal that has rocked a community and the secretive app that hid the images. The news is back this morning right here on cbs this morning. Announcer this portion of cbs this morning sponsored by nationwide. Nationwide is on your side scanner rescan item. Rescan, rescan. Rescan item. Vo it happens so often you almost get used to it. Phone voice main menu representative. Representative. Representative. Vo which is why being put first. Relax, we got this. Vo . Takes some getting used to. Join the nation. Nationwide is on your side representative. 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