A technician at NORAD’s Northeast Air Defense Sector (NEADS) tells a caller that the day’s training exercise has not yet been called off, despite the attacks in New York. [North American Aerospace Defense Command, 9/11/2001] All of NORAD, including NEADS, has been participating in a major exercise called Vigilant Guardian this morning (see (6:30 a.m.) September 11, 2001). [Aviation Week and Space Technology, 6/3/2002; Arkin, 2005, pp. 545] According to some accounts, this exercise was canceled shortly after 9:03 a.m., when the second World Trade Center tower was hit (see (Shortly After 9:03 a.m.) September 11, 2001). [Airman, 3/2002; Filson, 2003, pp. 59] However, Sergeant Mark Jennings, a NEADS tracking technician, now answers a phone call, and the caller says he has been watching the coverage of the terrorist attacks on television “for about 10 minutes, and I said, ‘I wonder if they’re—did they suspend the exercise?’” Jennings informs the caller that the exercise has not yet been suspended, answering, “Not at this time, no.” He adds: “But I think they’re going to [suspend it]. I don’t know. Things look pretty horrific out there.” The caller acknowledges, “Alrighty, man.” [North American Aerospace Defense Command, 9/11/2001]