A U.S. flag is unfurled at sunrise on Tuesday, Sept. 11, 2018, at the Pentagon on the 17th anniversary of the Sept. 11, 2001, terrorist attacks. (AP Photo/Pablo Martinez Monsivais)
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A U.S. flag is unfurled at sunrise on Tuesday, Sept. 11, 2018, at the Pentagon on the 17th anniversary of the Sept. 11, 2001, terrorist attacks. (AP Photo/Pablo Martinez Monsivais)
