I'm almost positive, if you're gunna hijack a plane, you're not gunna talk about hijacking, or blowing anything up while you're anywhere near the plane.
Get off your American high horse. 9/11 was a tragedy, yes. But many other countries in the world deal with that kinda ish yearly and don't make a big deal about it. Think about the Madrid train bombings. Most people don't even know about them. But, regardless, terrorism can never really be stopped, 'cause people will do what they do. You have to weigh it all on intelligence agencies... it's not often you trip onto a terrorist organization.