Frequently expressed propositions among movement supporters are that the mainstream account of the events of 9/11 is false and that the perceived anomalies in the official account can better be explained by the theory that a "rogue network,"including individuals in the US government planned, carried out, and covered up the attack or deliberately allowed the attacks to take place.
There is a wide range of alternative theories about how and why the attacks were carried out, including belief that US air defenses (NORAD) were deliberately rendered ineffective, that the two World Trade Center Towers and WTC 7 were demolished in a controlled fashion, and that the motives for the attacks were to justify overseas wars and to increase domestic control.
Lt. Col Robert M. Bowman, Ph.D. (USAF, ret) expressed the one common belief: "The truth about 9/11 is that we don’t know the truth about 9/11, and we should."
