CIA Releases Declassified Briefs on Bin Laden Ahead of 9/11 Anniversary
On the 25th anniversary of the September 11 attacks, the CIA released dozens of declassified presidential daily briefs detailing intelligence on Osama bin Laden and al-Qaida from February 1998 to September 2001. The documents reveal that US officials tracked bin Laden's movements, financing, and intent to attack US targets, including specific warnings about hijackings and biological weapons.
On Friday, marking the 25th anniversary of the September 11 attacks, the Central Intelligence Agency (CIA) released several dozen presidential briefing documents. These files detail intelligence gathered on Osama bin Laden and al-Qaida between February 1998 and September 2001.
CIA Director John Ratcliffe described the release as an act of exceptional transparency, noting it was the agency's single largest release of declassified presidential daily briefs. The documents range from a February 1998 file prepared for President Bill Clinton titled "Terrorists seeking WMD capability" to a report dated 12 September 2001.
The briefs confirm that US officials were tracking bin Laden’s movements, financing, and intent to attack US targets well before the 2001 attacks. An April 1998 document noted the Taliban's unwillingness to hand over bin Laden due to gratitude for his assistance during the Soviet occupation in Afghanistan. By July 1998, briefers called it plausible that bin Laden placed high priority on conducting attacks in the United States using chemical and biological agents.
Specific warnings regarding aviation threats appear in later documents. In September 1998, a briefer wrote that bin Laden's preferred option was to strike Washington and that al-Qaida might fly an explosive-packed airplane into a US city. A December 1998 document described conspirators evading security checks during a trial run at an unidentified New York airport and receiving hijack training.
Intelligence officials reported in June 1999 that bin Laden's operatives conducted experiments with explosives to increase energy output for dirty bombs. Briefs prepared for President George W Bush in early 2001 focused on bin Laden's experimentation with crude means to make and deploy biological agents.
In August 2001, reports noted suspicious activity consistent with preparations for hijackings, including surveillance of federal buildings in New York. At that time, the FBI was conducting approximately 70 full field investigations throughout the US considered bin Laden-related. Many documents were redacted to conceal sources' names and identifying information.
A report dated 12 September 2001 indicated a source claimed the attacks had been planned for two years and also targeted the US Capitol. While the documents confirm prior knowledge of threats, they did not appear to break new ground regarding the planning or execution of the attacks. The September 11 attacks killed nearly 3,000 people and upended American national security, leading to recommendations for a centralized director of national intelligence and the National Counterterrorism Center.