The CIA released 69 classified documents from before 9/11, revealing repeated warnings about al-Qaeda’s plans that US intelligence failed to assess correctly, including one that it could fly an explosives-laden plane into a US city

CIA declassifies presidential briefings that trace al-Qaeda threats to hijack plans and target US cities before 9/11

A September 10, 1998 brief — parts of which have been redacted — says that Al-Qaeda “may fly an explosive-packed aeroplane into a US city”.