According to a top secret report from the Director of Central Intelligence, George Tenet, on March 19, 2004: “A MON [Memorandum of Notification, issued by President Bill Clinton] of February [redacted] 1999 authorized the CIA to work with the Afghan Northern Alliance commander [Ahmed Shah] Masood against UBL [Usama Bin Ladin].” [The 15th of the month used for date sorting purposes only.]
– CIA, “DCI Report: The Rise of UBL and Al-Qa’ida and the Intelligence Community Response,” (Draft, CIA Analytic Report), The Central Intelligence Agency’s 9/11 File:, The National Security Archive, March 19, 2004