Project Bojinka, a plan discovered in 1995 on a laptop computer in the Philippines, detailed concrete plans to hijack airliners to crash into the World Trade Center, the CIA, the Pentagon, the Sears Tower, and the TransAmerica building. The Manila police chief, Avelino Razon, said: "I remember after the first World Trade Center bombing Osama bin Laden made a statement that on the second attempt they would be successful."
Six weeks prior to September 11, chief investigative counsel in the Clinton impeachment hearings, David Schippers, warned the U.S. Justice Department that FBI agents and others told him about a possible impending terrorist attack targeting lower Manhattan.
The British formal indictment against Osama bin Laden read, "In August and early September close associates of bin Laden were warned to return to Afghanistan from other parts of the world by September 10. Immediately prior to September 11 some known associates of bin Laden were naming the date for action on or around September 11.
German intelligence warned the CIA and Israel before September 11 that Middle Eastern terrorists "were planning on hijacking commercial aircraft to use as weapons to attack important symbols of American and Israeli culture."
A foreign intelligence agency intercepted a September 9 phone conversation of Osama bin Laden telling his stepmother, "In two days you're going to hear big news and you're not going to hear from me for a while." (This was published in the October 2, 2001, London Daily Telegraph.)
