Rescue personnel look through a photo album as they work in rescue operations in the rubble of a building felled by a 7.1 magnitude earthquake, in the Ciudad Jardin neighborhood of Mexico City, Thursday, Sept. 21, 2017. Thousands of professionals and volunteers are working frantically at dozens of wrecked buildings across the capital and nearby states looking for survivors of the powerful quake that hit Tuesday. (Eduardo Verdugo/AP)