It's just group think Pixel. Nobody likes to get outside the box. That's why you get people who look for a guru be it religious or scientific or entertainment related. Once you get that ole "tin foil" hat title on ya then you are done. Notice the smirks on the faces of news anchors when they discuss ufo's or when a third party political movement comes along? Notice that it's OK to make call the Pope a Nazi if your from Hollywood but ya better not say anything about the Messiah in D.C.? Nope, not defending the Pope but just sayin.
I don't know if the buildings were brought down or if there was a conspiracy. But, it does deserve at least as much respect and attention as having a professor from Tulane come on and hypnotise folks over a damn telephone.