From a CIA analytical report on February 14, 2001: “Bin Ladin and his associates have experimented by crude means to make and deploy biological agents. [Redacted] the recipes have been shared among extremists, including via the Internet. [Redacted] Bin Ladin has sought to acquire military-grade biological agents or weapons.”
– CIA, “Afghanistan: Bin Ladin’s Interest in Biological and Radiological Weapons,” (CIA Analytic Report), The Central Intelligence Agency’s 9/11 File:, The National Security Archive, Feb. 14, 2001