9/11 and Flight 93 remembered in Shanksville, PA

President Donald Trump and First Lady Melania Trump stand for a moment of silence for the victims at a ceremony marking the anniversary of 9/11 at the Flight 93 National Memorial in Shanksville, Pennsylvania on Tuesday, September 11, 2018. It is the 17th anniversary of the crash of United Flight 93 on September 11, 2001. Photo by Pat Benic/UPI