Interesting, thanks for the connection Camoscato. Though, I am not sure if the increase of safety outweighs the lost of civil liberties on this one. Isn't that what those air puff machines are for, to detect explosive materials and what not?
You're welcome for the link (self-promotion alert: I edited the story
). In this case, the bomb was sealed inside the bomber, making it harder for air puff machines or sniffer dogs to detect it (not impossible, but much much harder). We didn't have enough time to go into greater detail in the story, but the security guys that were interviewed were horrified at the possibility of human-borne bombs, and the impact they'd have on the security industry if they become prevalent.
I totally understand what you mean about civil liberties, and I agree that those concerns shouldn't be overlooked. As it stands with current technology, though, there aren't any good ways to detect a bomb hidden inside a human being.