i wonder why >>> if one has flown out of a major airport, at a time when guns were not obvious, elal used to have security and they had the guys are the submachine guns and it made you feel on the one hand a little bit uncomfortable and anxious, but then you're feeling if i'm feeling uncomfortable people doing bad stuff, they wouldn't travel this way. when we come to write the definitive version of what this man is doing here, might it be simple as something that he doesn't have explosives with him, maybe he has something that looks like an explosive device. we're hearing about 3d printers. you could fold it in the toilets and come out and say do what i'm telling you to do. >> that's right. again, where is the trained security guard. in this case it would have been more easy for the trained security guy to control him. also it seems to me that the man is living in the past because this hijacking, planned hijacking, have stopped. it seems that we are making a full back to the 60s and 70s and 80s. it is really a big question m k mark. thank you for that. let's talk to sean, an aviation