May 1, 2001 On May 1, 2001, the CIA informed the White House that "a group presently in the United States" was in the process of planning a terrorist attack.
June 13, 2001 On June 13, 2001, Osama bin Laden made a tape for supporters mentioning a possible attack on the
G8 summit in Genoa, Italy. A copy of this tape and related information were obtained separately by Egyptian and Italian intelligence agencies and shared with the US. The plan was said to involve a plane packed with explosives being crashed into the summit to kill President Bush and other world leaders in attendance. The possible attack was widely reported in the days leading up to the summit, and Italy barred commercial air traffic from the area, deployed fighter jets to patrol, and positioned surface to air missiles around the meeting zone.
June 29, 2001 The President's Daily Brief on June 29, 2001, stated that "[the United States] is not the target of a disinformation campaign by Osama Bin Laden". The document repeated evidence surrounding the threat, "including an interview that month with a Middle Eastern journalist in which Bin Laden aides warned of a coming attack, as well as competitive pressures that the terrorist leader was feeling, given the number of Islamists being recruited for the separatist Russian region of
Chechnya." On the same day, FBI Special Agent Kenneth Williams sent a letter to FBI headquarters warning of suspects connected to al-Qaeda who were attending flight schools in Arizona, and demanding further investigation. This document is known as the
Phoenix Memo.
August 6, 2001 On August 6, 2001, the
President's Daily Briefing, titled "
Bin Ladin Determined To Strike in US", warned that bin Laden was planning to exploit his operatives' access to the U.S. to mount a terrorist strike:
FBI information... indicates patterns of suspicious activity in this country, consistent with preparations for hijackings or other types of attack. ==See also==