May 15, 1998: Oklahoma FBI Memo Warns of Potential Terrorist-Related Flight Training; No Investigation Ensues

An FBI pilot sends his supervisor in the Oklahoma City FBI office a memo warning that he has observed “large numbers of Middle Eastern males receiving flight training at Oklahoma airports in recent months.” The memo, titled “Weapons of Mass Destruction,” further states this “may be related to planned terrorist activity” and “light planes would be an ideal means of spreading chemicals or biological agents.” The memo does not call for an investigation, and none occurs. [NewsOK (Oklahoma City), 5/29/2002; US Congress, 7/24/2003] The memo is “sent to the bureau’s Weapons of Mass Destruction unit and forgotten.”
[New York Daily News, 9/25/2002] In 1999, it will be learned that an al-Qaeda agent has studied flight training in Norman, Oklahoma (see May 18, 1999). Hijackers Mohamed Atta and Marwan Alshehhi will briefly visit the same school in 2000; Zacarias Moussaoui will train at the school in 2001 (see February 23-June 2001).