There is one essential point that all of us here understand but may be forgetting: a society ignorant of the fact that violence is only capable of generating evil will accept the expansion of violence as the "logical" remedy for the failure of violence.
Do not for one second believe that exposing the crime of 9/11 to a population that does not yet accept the basic tenets of universal morality will result in anything other than a ripe opportunity for further brutal State opportunism. (the establishment of World Government, championed by academics on the forefront of political "thought" like Sam Harris, perhaps?)
By all means, discuss "conspiracy" theories in this forum amongst those who reach the correct conclusion from their examples. (9/11 is just the tip of an iceburg so unimaginably evil it would make Saw Trilogy aficionados sick to their stomach) Discussing them with people you know do not yet grasp universal morality, and so are only capable of drawing the wrong conclusions, can only serve the interests of the State.
Recognizing the evil "government" is capable of != recognizing that "government" is evil. The "conspiracy" theorist who has earned the most respect from me happens to be a democratic socialist who specifically argues against anarchist thought in the concluding chapter of one of his books!