presumably they would be able to open that door. also to ensure there were no she nan i gans in the cockpit? >> they would obviously be capable of opening the door. what else goes on in there i can't tell you. it is a great puzzle right now what really transpired in that cockpit. the airplane is very sophisticated, rachel. it is so sophisticated, that it will not allow you to do things that will allow you to destroy the airplane. you have to follow certain procedure in order to make changes. in order to do that, you would have to be able to program into that console, the computer, the fact that you want the nose down, you want the airplane to maintain the same air speed. you want the airplane to maintain the same heading. you want the airplane to maintain stability as it flies on that descent. the only thing you want changed is altitude. and from all of the parameters that i've seen so far, that's what happened. the only thing that changed, once that airplane started to make its deviation, was