Why is September 11, 2001, a significant date in US history?
Al-Qaeda carried out the largest terrorist attack against the United States on this date.
It is the date that Congress passed the Patriot Act authorizing sweeping surveillance powers.
It is the date that the US military launched a “war on terror” in Iraq and Afghanistan.
Al-Qaeda leader Osama Bin Laden was killed on this date by US military forces.
