cairo. if there was possibly a tail malfunction this time mid-flight, could it cause a debris field like the one we're seeing? >> well, it could if the tail -- if a significant part of the tail came off or they had a rapid decompression at that flight level at 30,000 feet. and you would expect to see the plane come down in two distinct debris areas, which is the debris field that they have. and so that could explain it. people are going to be very skeptical of that because this plane should have been through several checks what they call c checks and d checks where that tail should have been inspected. however, that being said those inspections don't often and don't usually include x-rays or sonograms, if you will, technical inspections like that on the tail that can see beneath the paint job. >> mary schiavo, phillip mudd, thank you both. appreciate your expertise. a brand new poll shows one republican rising. who's moving to the top of the field? that story next. and dozens of chipotle restaurants closed after an