It says something about the "creatures" that did it, the thing that I always thought separated humans from animals was the fact that humans have a conscience, no being of any sort with a conscience could have done such a thing, so what were/are they?, and another question, the hijackers, by all accounts, were quite intelligent and mixed within the western world, how can someone with any amount of intelligence be so brainwashed to think that this is going to achieve anything?