after 9/11, ray downey, the greatest deputy fire chief expert on building collapse in new york. ey came and helped us during our own agony in the april 1995 bombing. ray and his people, their practice was to establish their command post if you will on the first floor of a building. well that first floor of the tower, was an inferno and people did not survive when the building collapsed on ray and all of his people. these are the kind of questions that have to be asked. and obviously the answers are going to have to be solicited and then implemented whatever changes that need to be implemented. >> a frank keating, a governor who has been there, seen this before tragically. >>> and one of the heartbreaking stories unfolding is that of plaza towers elementary school, where teachers tried to shelter the kids in the hallways and in the bathrooms, some of them using their bodies to cover students when the tornado hit. >> there's the school. i'm not for sure the exact name of it. but that's, that's going to be on, it's going to be south . >>> we had to walk over piles of like, desks and