You have to ignore a great deal of evidence to not see something just isnt right. Especialy when you have fire fighters striaght saying they heard several explosions just before they went down. Plus, how the hell can a plane drop a building falling within its self, as good as a demolition crew could have done? Let alone twice. Each building dropped in 7 seconds flat, that is near free fall. In other words as well constructed as the buildings were made (and made to take plane crash, fully fueled) no part gave ANY resistance on the way down. Listening to the enginer's that is simply impossible.