If there was any doubt that the 9/11 hijackers were patsies in some sort of intelligence operation, we need look no further than the recent revelation by FOX News that Anwar al-Awlaki dined at the Pentagon just months after 9/11 as part of a "Muslim outreach" program. http://www.infowars.com/al-qaeda-leader-dined-at-the-pentagon-just-months-after-911/
Anwar al-Awlaki, whom the Obama Administration has targeted for extra-judicial assassination http://www.salon.com/news/opinion/glenn_greenwald/2010/01/27/yemen, is an individual who connects together 9/11 with a series of subsequent terrorist incidents such as the Fort Hood shooting, the Christmas Day bomb plot, and Times Square bombing. In an effort to thwart a lawsuit by the ACLU and father of Anwar al-Awlaki to prevent his son from being executed, the Obama Administration has invoked state secret privilege. http://www.alternet.org/rights/148307/obama_administration_asserts_state_secret_privilege_to_thwart_lawsuit_against_targeted_killings/ This clearly is a violation of the Constitution and intent of its framers and further evidence of the erosion of civil liberties since 9/11.
Anwar Al-Awlaki operated a mosque in San Diego, California that was attended by Nawaf al-Hazmi and Khalid al-Mihdhar, two of the 9/11 hijackers that were alleged to have hijacked Flight 77 and crashed it into the Pentagon. Al-Hazmi and al-Mihdhar are the two hijackers that lived in the summer of 2000 with an FBI counter-terrorism official named Abdussattar Shaihk. http://www.historycommons.org/entity.jsp?entity=abdussattar_shaikh (Shaihk has some intriguing intelligence ties in addition to his work as a paid FBI informant http://www.madcowprod.com/04112005.html).
Intriguingly, al-Awlaki also presided over a mosque in Falls Church, Virginia that the hijackers attended after leaving California and relocating in the Washington, D.C. area.
The Fort Hood shooter, Nidal Hassan, attended the Falls Church mosque at the same time as the two San Diego hijackers and Hani Hanjour, who is credited by the 9/11 Commission with piloting Flight 77 into the Pentagon.
For more on a Pentagon/CIA connection to al-Qaeda see Paul Joseph Watson's article, "Al-Qaeda is a Front Group for the US Military-Industrial Complex," http://www.infowars.com/al-qaeda-is-a-front-group-for-the-us-military-industrial-complex/