Xymphora has made a list 20 things we still don't know about 9/11. Xymphora's conclusion:

This case is remarkable for the fact that we know almost nothing about what happened. The United States has embarked on two dreadful and unsuccessful wars based on the excuse of these attacks, and turned the country into a fascist security state. You would think there might be the slightest effort to answer some of these questions. The Bush Administration is stonewalling on even the most basic documents, and appears to have gotten away with one of the greatest cover-ups yet devised. The most striking thing is that most if not all of these issues could easily be resolved if the right people were forced to answer some rather simple questions.

We think declaring the U.S. a fascist state is a bit of a hyperbole, but there's no question our fundamental liberties have been eroded. We agree that the secrecy in which the Bush Administration has been permitted to operate must end. We need an enlightened citizenry that can properly assess the freedoms that are being taken away, and that can only happen with an unfettered and fully informed press.