A
tragic event that occured in 2001.
Terrorists boarded commercial jets, hijacked them, and flew them into the Twin Towers and the Pentagon, and the fourth hijacked plane was crashed in a field in Shanksville, Pennsylvania.
The main suspect of the attacks was Osama bin Laden...who is
head of Al Qaeda, the Taliban was also involved.
Nowadays this tragety is used for politicians to try and get higher ranks, promising they'll do
something about it, and they never do.
9/11 is also a reason why Arabs get checked at airports a lot more than the rest of us. Also, it's the sole reason why we now have to take off our
shoes before boarding a plane.