Joel Watts at Unsettled Christianity has one of those blogs where the picture or the quotation at the top keeps changing. He has one of a Noam Chomsky quotation:
“The smart way to keep people passive and obedient is to strictly limit the spectrum of acceptable opinion, but allow very lively debate within that spectrum....”
Chomsky is not a 9/11 Truther and has argued that the question of 9/11 Truth is just a side show. In other words, Chomsky is one of those who is trying to limit the spectrum of acceptable opinion, ruling out 9/11 Truth. Thus, Chomsky will allow debate about U.S. foreign policy, and whether or not using drones is acceptable, but please, don't bring up that silly idea of 9/11 being an inside job. That is not within the spectrum of acceptable opinion. And thus, the very issue that has the most potential for making people lively and disobedient is not allowed to be discussed.
In my opinion, I think we should accept the insight of the above quotation and ignore whatever else Chomsky might have to say about 9/11 Truth.