Based on interviews with FBI officials, the New Yorker will report that, for several years prior to 9/11, the US government plans for “simulated terrorist attacks, including scenarios [involving] multiple-plane hijackings.” This presumably refers to more than just the Amalgam Virgo 02 exercise (see July 2001), which is based on the scenario of two planes being simultaneously hijacked. [New Yorker, 9/24/2001] Similarly, NORAD will state that before 9/11, it normally conducts four major exercises each year at headquarters level. Most of them include a hijack scenario, and some of them are apparently quite similar to the 9/11 attacks (see Between 1991 and 2001 and Between September 1999 and September 10, 2001). [USA Today, 4/18/2004; CNN, 4/19/2004] According to author Lynn Spencer, before September 11, “To prepare for their missions in support of NORAD, the Air National Guard pilots—some of the finest pilots in the world—often use hijacking scenarios to train for intercept tactics.” [Spencer, 2008, pp. 84-85] John Arquilla, an associate professor of defense analysis at the Naval Postgraduate School in Monterey, California, later says that while “No one knew specifically that 20 people would hijack four airliners and use them for suicide attacks against major buildings… the idea of such an attack was well known, [and] had been war gamed as a possibility in exercises before Sept. 11.” [Monterey County Herald, 7/18/2002]