Recent disclosures by the Trump administration expose previously classified documents detailing warnings given to former presidents Bill Clinton and George W. Bush concerning terrorist plans orchestrated by Usama bin Laden. Intelligence warned of potential hijackings aimed at attacking the United States, utilizing commercial jets. These documents, extracted from presidential daily briefs (PDBs) and CIA memorandums, represent information predating the September 11 attacks.

Three years before the attack on the World Trade Center, operatives bypassed security checks in a trial run at a New York airport. The goal was to hijack flights and push for the release of imprisoned radicals such as Sheikh Omar Abdel-Rahman and Ramzi Yousef.

Some members of the bin Ladin network have received hijack training, according to various sources, but no group directly tied to bin Ladin’s al-Qa’ida organization has ever carried out an aircraft hijacking. Bin Ladin could be weighing other types of operations against US aircraft.

Months prior to this briefing, a memorandum from September 1998 indicated bin Laden’s preferred method was an attack within Washington, D.C. It highlighted concerns that terror networks linked to the East Africa embassy bombings might fly a plane containing explosives into a U.S city.

Throughout 1998, U.S. intelligence monitored bin Laden’s activities and identified associates in multiple states including New York and California. These warnings were given to administrations during Clinton’s term and into Bush’s presidency. On August 6, 2001, Bush received a brief informing him of suspicious activity suggesting hijack preparations and surveillance on federal buildings.

Al-Qa’ida members — including some who are U.S. citizens — have resided in or traveled to the U.S. for years, and the group apparently maintains a support structure that could aid attacks.

Prior to missile strikes on his base in Afghanistan, bin Laden sought revenge, expressing a desire to retaliate in Washington.

The Trump administration released these documents alongside statements from CIA Director John Ratcliffe, emphasizing efforts to bring transparency concerning what intelligence agencies knew before the attacks. Ratcliffe authorized the release of 71 PDBs to honor those killed on 9/11, including CIA officers who died combating terrorism.