Flight 93 Tower Of Voices

Dignitaries gather under a tent at the dedication of the 93-foot tall Tower of Voices on Sunday, Sept. 9, 2018 at the Flight 93 National Memorial in Shanksville, Pa. The tower contains 40 wind chimes representing the 40 people that perished in the crash of Flight 93 in the terrorist attacks of Sept. 11, 2001.(AP Photo/Keith Srakocic)