on his flight device, he is trying to maintain space -- >> what if they found deleted routes that mean suspicious? >> what does that mean? as a simulator instructor, we put all kinds of crazy airlines that we may never have flown into. so i think that by itself, i am really glad the fbi is in on this. until they tell us what is on there right now, i don't think we'll find anything. >> rob, you think trying to get your arms around who this pilot is, we're told by some that the captain's marriage appeared to be breaking up? >> well, i think it is going to be important as somebody mentioned earlier that the most important people to talk to are the people that have been flying with both of these guys for the last 60/90, 120 days. when you sit in the cockpit with somebody else and they're maybe two feet away from you for four or six or eight, ten, 12 hours