Airplanes are hijacked

In September 11th, 2001, nineteen terrorists were aboarding the flights: American 11, United 175, American 77, and United 93. The different terrorists passed through the security checkpoints and boarded the airplane. These flights departed from Boston, Newark, and Washington D.C. in between 7:30 and 9:00 am. After final contact with the towers, the planes were hijacked by this group. Two airplanes collided with the World Trade Center, one with the Pentagon, and another in an abandoned field in Pennsylvania after a battle between the bad guys and the passengers.

"At Dulles International Airport in the Virginia suburbs of Washington, D.C., five more men were preparing to take their early morning flight." Five terrorists were going to an airplane in Washington D.C. and this plane will be the one that will end colliding near the White House inside of the Pentagon.
"At 8:46:40, American 11 crashed into the North Tower of the World Trade Center in New York City." This is the first hijacked plane and one of the two that crashed the World Trade Center.

There was suspect about these terrorists getting into the airplanes, but they were allowed to go becaused they passed through the checks. Once they were in the air, there was nothing that people could do, only wait to see what happens. Some brave passengers almost controlled the United 93 flight, but the bad guys crashed it before people rescuing it. This was a massive attack that will always be remembered by the whole world, but especially by the Americans.