From the 9/11 Commission Report’s list of Operational Opportunities: “May 2001: a CIA official does not notify the FBI about [future 9/11 hijacker Khalid al] Mihdhar’s U.S. visa, [fellow hijacker Nawaf al] Hamzi’s U.S. travel, or [African embassy bombing conspirator] Kallad’s having attended the Kuala Lumpur [Malaysia] meeting (identified when he reviewed all of the relevant traffic because of the high level of threats).” [The 15th of the month is used for date sorting purposes only.]
– 9/11 Commission, The 9/11 Commission Report, Page 355