The CIA's station chief in Germany at the time Mohamed Atta was operating his ring out of Hamburg, David Edgar, was recruited by former Senate Intelligence Committee Chairman David Boren to teach at the University of Oklahoma in August of 2001. http://www.historycommons.org/entity.jsp?entity=david_edger_1 Boren was then serving as the university's president in Norman, Oklahoma.
Interestingly, David Edgar was part of the CIA team in Chile during the 1970s that was responsible for overthrowing the government of Salvador Allende. http://bellaciao.org/en/spip.php?article9024 Allende was overthrown on September 11, 1973 (emphasis added).
Boren is widely credited with having groomed George Tenet for his job as CIA Director. Both Boren and Tenet were having breakfast at a posh hotel in Washington, D.C. when news of the 9/11 attacks reached Tenet.
Other persons related to 9/11 that were seen in and around Norman, Oklahoma prior to 9/11:
- Nick Berg (loaned his laptop to an associate of Mouassaoui and may have purchased airline ticket for Ziad Jarrah used on 9/11)
- Zacarias Moussaui
- Mohamed Atta
- Marwan al Shehhi
- Nawaf al Hazmi
- Osama bin Laden's pilot, Ihab Ali Nawawi, attend flight school in Norman in 1993
By coincidence, some of the alleged 9/11 hijackers held a meeting at the Sands Motel outside Oklahoma City where Timothy McVeigh stayed prior to bombing the Murrah Federal Building. http://www.infowars.com/articles/us/ok_axis_of_evil.htm