CNN Anderson Cooper 360 March 26, 2015 00:23:00
Potentially the pilot passing out because i think they have some type of code where they're going to make sure that they're keeping everything safe. because he or she goes outside could potentially be under duress if anything goes down in the cabin and the pilot would remain safe. if that was the case and you pass out and you're pretty much out of luck you're not going to be able to get back inside or if there was a plan or somebody possibly went inside when the co-pilot came outside, or potentially if the pilot who was inside actually had a plan to do harm to the aircraft. he or she would hav...
Source: archive.org