I think too much emphasis is placed on the goofballs at the security checkpoint. They are fussing over nail clippers. Take one or two of them and have them open and search the luggage. It's been all over the news (but long known by FTers) that any idiot terrorist can put a bomb in the luggage.

Osama is probably waiting for when he can get 19-20 terrorists together (like he did on 9-11). If he was satisfied with putting 1 bomb, it would have happened already. He wants to take down 2 or 3 dozen planes, I'm sure.