The United States Central Intelligence Agency (CIA) released more than 70 memos on Al-Qaeda, covering the period before and after the September 11, 2001 attacks.
The reports are presidential in nature and aim to reconstruct the history of the understanding that CIA analysts had about the Al-Qaeda organization over time.
The memos document the efforts of the American agency to uncover attack plans developed by Osama bin Laden, founder of Al-Qaeda.
The release occurs in a context of renewed interest in evaluating the intelligence information that preceded the 2001 terrorist attacks.
