This is a flag left at the Flight 93 National Memorial in Shanksville, Pa, Friday, Sept. 11, 2015, as the nation marks the 14th anniversary of the Sept. 11 attacks. (AP Photo/Gene J. Puskar)
This is a flag left at the Flight 93 National Memorial in Shanksville, Pa, Friday, Sept. 11, 2015, as the nation marks the 14th anniversary of the Sept. 11 attacks. (AP Photo/Gene J. Puskar)
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