on the aircraft. that is a huge risk. i would think of going in the other direction. requiring travelers put a laptop into the belly of an aircraft so you don't have a system that requires every screener to be perfect every time. that's a lot of risk. >> can't you just blow it up from the belly of the aircraft? >> that's right. you could. it could be on a timer device. >> how does that solve the problem? >> a couple ofs things make it difficult for the terrorist ex-ploet in the belly. you need higher sophistication. nobody at the keyboard. the second is technical. if you put it in the belly of the aircraft, you can't even sh ensure it is at the skin of the aircraft. >> the idea you cannot bring your camera or laptops or ipad or gaming devices on a plane. those game changers. >> alisyn, buy a book. >> i don't know.