It involves China.

All of the Terrorist Pilots were trained to be fluent speakers of the Mandarin Dialect, and in addition to their training in the US flight schools, they also recieved training in Chinese Su-30MKK fighters so that they would understand the capabilities of any fighter jet resistance they might encounter while in the hostile skies over America.

Additionally, on the morning of 9/11, the US airforce planes were unavailable to defend the USA because they had been scrambled to intercept several Chinese KJ-2000 Airborne Radar Planes that were lurking for unknown reasons off of both coasts of the USA (Possibly to monitor the unfolding events?).

In addition, I am told (By a freind that has ties to some pretty high people at the US State Department) that the CIA has secret photos of Muhammad Atta visiting the Chinese embassy in Mexico City AND Havana.

Now knowing these facts, one can only speculate that the reason for the Cover-up of the TRUTH surrounding 9/11 is the the US Administration is terrified of the Chinese Communists and the threat that they might launch an economic blockade of the US should the US divulge the TRUTH.

So that is what they really want to hide. Its all about the $$$$.

Bush is hiding the Truth because all of his cronies stand to loose Trillion$s if Trade with China is stopped.