According to a declassified CIA intelligence report from December 4, 1998: “[Redacted] indicate the Bin Ladin organization or its allies are moving closer to implementing anti-US attacks at unspecified locations, but we do not know whether they are related to attacks on aircraft. A Bin Ladin associate in Sudan late last month told a colleague in Kandahar [Afghanistan] that he had shipped a group of containers to Afghanistan. Bin Ladin associates also talked about the movement of containers to Afghanistan before the East Africa [embassy] bombings.”
– CIA, “Bin Ladin Preparing to Hijack US Aircraft and Other Attacks,” (CIA Intelligence Report), The Central Intelligence Agency’s 9/11 File:, The National Security Archive, Dec. 4, 1998