Remembering September 11 attacks

The September 11 attacks (often referred to as 9/11) were a series of coordinated suicide attacks by al-Qaeda upon the United States on September 11, 2001. On that morning, terrorists affiliated with al-Qaeda hijacked four commercial passenger jet airliners.^[1][2] The hijackers intentionally crashed two of the airliners into the Twin Towers of the World Trade Center in New York City, killing everyone on board and many others working in the building, causing both buildings to collapse within two hours, destroying at least two nearby buildings and damaging others. The hijackers crashed a third airliner into the Pentagon. The fourth plane crashed into a field near Shanksville in rural Somerset County, Pennsylvania, after passengers and members of the flight crew on the fourth aircraft attempted to retake control of their plane, which was heading for Washington, D.C. There are no known survivors from any of the flights.