and you have to be really careful with how they handled the information. that's the implication of what we're looking at in this report >> the alternative explanation is that the pilot who remained in the cockpit was somehow physically disabled and incapable of opening that door. what could possibly create that kind of scenario? >> well, a medical condition of some kind, a medical emergency. but the piece of the puzzle that i think we need to focus on here is that the plane descended. either he was flying the plane and stair stepped it down at the 4,000 foot a minute rate, or he set the autopilot for that. we don't know that. it will be more important than ever we get the flight data recorder, because that will tell us when the autopilot was set and where it was -- who set it. whether it was set from the pilot's side of the plane or from the co-pilot's side of the plane. >> greg, how -- what is the