September 11, 2014 it’s 13 years since unprecedented terrorist attacks were carried out in the United States. The tragedy resulted in more than 3,000 casualties.
Two Boeing 767 passenger planes collided with the 110-storey twin towers of the World Trade Center. The third plane, Boeing 757, fell down on the Department of Defense building in Washington. The fourth plane, also a Boeing 757, fell down in 80 miles from Pittsburg. The planes belonged to American Airlines и United Airlines and were hijacked by suicide terrorists.