Bush was warned that al Qaeda planned to hijack airliners over a month before the attacks, but did NOTHING to increase security.
http://rense.com/general50/bushrice.htm
The Bushies COULD have put the military on high alert, but instead Cheney organized a drill mimicking the hijackings on Sept. 11 so air traffic controllers didn't even know what was real on their screens and what was fake.
Gen. Wesley Clark, former NATO chief, revealed plans had been drawn up to take down 7 nations in 5 years. He learned of this ~9/20, so these were most likely already in place on 9/11.
https://www.youtube.com/watch?v=9RC1Mepk_Sw
Unfortunately, soldiers cannot always be trusted.
http://dissidentvoice.org/Articles8/DVNS_Wesley-Clark.htm
Yes, I know our military is not being used to protect the American people, as it should be. It primarily acts as gangsters enforcing the ability of American corporations to exploit & seize the resources of foreign lands.
https://www.youtube.com/watch?v=EI3lckqaSk0