September 9, 2001: NEADS Exercise Includes Scenario with Terrorist Hijackers Targeting New York

Personnel at NORAD’s Northeast Air Defense Sector (NEADS) practice their responses to a simulated plane hijacking in which terrorists plan to blow up a hijacked airliner over New York City. The scenario is part of the annual NORAD training exercise Vigilant Guardian. [9/11 Commission, 2004; Spencer, 2008, pp. 3] In the scenario, the fictitious hijackers take over a McDonnell Douglas DC-10 aircraft bound from London, Britain, to JFK International Airport in New York. According to a document later produced by the 9/11 Commission, the terrorist hijackers have explosives on the plane and “plan to detonate them over NYC.” As the scenario plays out, a “Blue Force” is able to divert the hijacked aircraft. When the terrorists then realize they are not near New York, they “detonate [the] explosives over land near the divert location.” There are no survivors. [9/11 Commission, 2004] NEADS is based in Rome, New York, and will play a key role in coordinating the US military’s response to the 9/11 attacks two days later. On the morning of September 11, its personnel will be scheduled to practice another scenario based around an aircraft hijacking, presumably as part of the same Vigilant Guardian exercise (see (9:40 a.m.) September 11, 2001). [9/11 Commission, 7/24/2004, pp. 17; Vanity Fair, 8/1/2006]