Of course they do, but why? I've asked you this for three days now and you won't respond. Don't you ever wonder why they'll blow themselves up to kill an american but pretty much leave everyone else alone? How do you expect to fix the problem if you're unsure of what the root cause is? You could kill all of them I suppose but you'd have to either sniff out each individual Al Qaeda member in 100 countries or kill 1 billion muslims on earth. So which one will it be?