Most of the terrorist groups all ask that the USA stay out of their particular countries. Perhaps if uncle Sam would mind his own buisness and stop worrying about who has what in their country, the world would be a more peaceful place. I don't care what my neibor has in his closet, and he shouldn't care what I have in mine. Don't forget who dropped the bomb, and placed most of the weapons of mass destruction in the hands of these terrorists, and helped them get to the place of power in the first place.
Guns, planes, and pilots don't mix. Don't forget that it was a sofisticated group that did September 11th, and next time they want to make a statement they will. Guns in the cockpit or not. I'd be more affraid of a missile attack on take-off. Or maybe catching a deadly flu.