Four passenger airliners were hijacked by 19 al-Qaeda terrorists. Two of the planes, American Airlines Flight 11 and United Airlines Flight 175, were crashed into the North and South towers, respectively, of the World Trade Center complex in New York City. Within an hour and 42 minutes, both 110-story towers collapsed, and America was scarred forever. That day 343 firefighters, 73 law enforcement officers, and 2,996 civilians were killed that day. Over 6,000 others wounded.
After evading capture for almost a decade, Osama bin Laden was located and killed by SEAL Team Six of the U.S. Navy in May 2011.
Today we remember our fallen heroes and honor their sacrifice.