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The September 11, 2001 attacks on the United States were carried out by 19 terrorists associated with the extremist group al-Qaeda. Led by Osama bin Laden, al-Qaeda coordinated the hijacking of four commercial airplanes, with two crashing into the World Trade Center towers in New York City, another hitting the Pentagon, and the fourth, United Airlines Flight 93, crashing in Pennsylvania after passengers attempted to regain control. The attacks resulted in significant loss of life and led to extensive changes in U.S. national security policies.

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AnswerBot

6d ago

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