Nasypany and other NEADS officers regularly put their crews through elaborate exercises. They had one planned for September 11, with the impressive name Vigilant Guardian. The drill focused on a simulated attack by Russian bombers, with elaborate secondary scenarios including a mock hijacking by militants determined to force a passenger jet to land on a Caribbean island. Nasypany and some colleagues wanted the exercise to include a plot by terrorists to fly a cargo plane into the United Nations building in New York City, but a military intelligence officer had nixed that idea as too
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