ADVANCE FOR PUBLICATION ON SATURDAY, SEPT. 4, AND THEREAFTER - Guy Sanders poses for a photo Friday, Aug. 20, 2021, in Branchville, S.C. Sanders, originally from Brooklyn, N.Y., was an EMT who responded to the terrorist attacks on Sept. 11, 2001. The 47-story building at 7 World Trade Center had just collapsed, about seven hours after the burning towers fell and debris ignited fires in the smaller high-rise. A tsunami of dust washed over Sanders, so thick that it clogged his surgical mask. (AP Photo/Sean Rayford)