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  1. September 11 attacks

September 11 attacks

The September 11, 2001 attacks were the deadliest terrorist attack to ever occur in the United States. Members of the al-Qaeda terrorist network hijacked four commercial airplanes and crashed two of them into the twin towers of the World Trade Center in New York City, one into the Pentagon building near Washington, D.C and the fourth plane crashed near Pittsburgh. Much of the World Trade Center complex was destroyed as well as the southwest side of the Pentagon. The attacks caused a high number of fatalities: 2,750 people were killed in New York, 184 at the Pentagon, and 40 in Pennsylvania; all 19 terrorists died.