1998: FBI Agent Starts First Investigation into Arizona Flight Students

The FBI field office in Phoenix, Arizona, investigates a possible Middle Eastern extremist taking flight lessons at a Phoenix airport. FBI agent Ken Williams initiates an investigation into the possibility of Islamic militants learning to fly aircraft, but he has no easy way to query a central FBI database about similar cases. Because of this and other FBI communication problems, he remains unaware of most US intelligence reports about the potential use of airplanes as weapons, as well as other, specific FBI warnings issued in 1998 and 1999 concerning Islamic militants training at US flight schools (see May 15, 1998; September 1999). Williams will write the “Phoenix memo” in July 2001 (see July 10, 2001). He had been alerted about some suspicious flight school students in 1996, but it is not clear if this person was mentioned in that previous alert or not (see October 1996). [US Congress, 7/24/2003 ]