Since the first airplane hijacking on July 13, 1956, pilots and passengers have been afraid for their lives. Some of these hijackings have even prove d to be even deadly. The worst airplane hijacking in the history of the world was the hijacking of the two passenger planes, the American Airlines Flight 11 and United Airlines Flight 175 , which crashed into the Twin Towers on September 11, 2001, killing 2,751 citizens on that devastating day.
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