Good Lord. A bunch of PhD and MA psychologists who happen to be '9/11 Truthers' explaining why those of who don't believe that 9/11 was a conspiracy are in denial and resistance.
Right, because those 19 hijackers were figments of our collective imagination.
And these people are practicing psychologists? Scary!
For anyone who might think it's a conspiracy, Debunking9/11 will set you straight.