May 18, 1998: An Oklahoma newspaper later reports that the FBI office in Oklahoma City sends a memo on this day warning that "large numbers of Middle Eastern males" are getting flight training in Oklahoma and could be planning terrorist attacks. [AP, 9/26/01, CNN, 9/18/01] This remarkable story seems to have been reported only by one Oklahoma daily. [NewsOK, 5/29/02, see the memo here] It appears this warning was not followed up. In 1999 it is learned that an al-Qaeda agent had studied flight training at the Airman Flight School in Norman, Oklahoma. Hijackers Atta and Marwan Alshehhi consider studying at the same school in 2000; Zacarias Moussaoui does study at the school in 2001 (see September 1999 (E)).