CNN CNN Newsroom March 4, 2013 19:07:00
Diane, going up and down, up and down? >> i can't verify actually that it is going up and down. we have several airplanes that have come and gone at this airport since this started. and including a military c-1 from nearby scott air force base. >> okay. i know you say this is not crash landing mode, and, of course, none of us want to think that way, but obviously given the pictures as we're looking at these ambulances, you know, people on the ground are clearly preparing for something in which an ambulance would be necessary. can you walk me through protocol, just on the ground, on the tarmac,...