In an interview on the morning of 9/11 Porter Goss confirms they had envisioned using planes as weapons before 9/11. During his interview a loud BOOM can be heard. An ABC piece also confirms that George Bush and Condoleezza Rice had not been truthful in their statements.

http://www.youtube.com/watch?v=DssnHI-mGVY

(Thanks to shure from PrisonPlanet forum : http://forum.prisonplanet.com/index.php?topic=186832.msg1118681;topicseen#msg1118681 )