15 years later, we remember
Keesler personnel lower the U.S. flag during a 9/11 memorial ceremony, Sept. 12, 2016, on Keesler Air Force Base, Miss. Fifteen years ago on Sept. 11, 2001, 19 terrorists simultaneously hijacked four passenger jets; flying one into the Pentagon in Washington, D.C., two into the World Trade Center in New York City, New York and one crashing outside of Shanksville, Pa. A total of 2,996 people were killed in the attacks. (U.S. Air Force photo by Kemberly Groue/Released)

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Photo by: Kemberly Groue |  VIRIN: 160912-F-BD983-769.JPG