The CIA and FBI send a joint investigative team to Sudan to investigate whether that country is a sponsor of terrorism. Sudan again offers to hand over its voluminous files on al-Qaeda (see March 8, 1996-April 1996, April 5, 1997, and February 5, 1998), and the offer is again rejected. [Observer, 9/30/2001; Vanity Fair, 1/2002] The US will finally agree to see the files shortly before 9/11 (see July-August 2001).