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On the morning of September 11, 2001, two airplanes, American Airlines Flight 11 and United Airlines Flight 175, collided into the north and south towers (the main “Twin Towers”) of the World Trade Center complex in New York City. Shortly thereafter, as a result of fires caused by burning jet fuel and falling debris, the Twin Towers collapsed (south tower – 9:59 am; north tower – 10:28 am), resulting in significant damage to remaining five other towers that made up the complex and the buildings in the vicinity. The collisions were the result of acts of terrorism perpetrated by a foreign terrorist group.
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Unit 7 DB: Protecting the Business