Credit: A couple embraces on the Brooklyn Promenade as the Tribute in Light rises above the lower Manhattan skyline Sunday, Sept. 10, 2017, in New York. The two blue pillars of light provide a visual reminder of how the Twin Towers, destroyed in the terrorist attacks of Sept. 11, 2001, once stood above the city skyline. (AP Photo/Mark Lennihan)
Remembering Sept. 11 — 16 years later
