Well it's said that 9/11 was blowback for out actions involving Saudi Arabia, as well as our economic stranglehold on the ME. So our actions overseas spawned the attack, which I think we can all agree upon, honestly I'm worried the next big attack will come from terrorists from Yemen. Again people will act like we did nothing to cause the domino effect. Sure blowback is an unexpected consequence. But is someone landing a punch every now and then when you've curbstomped them for years honestly that unexpected.