1:24ABC NewsSeptember 11, 2021Biden visits Shanksville Fire DepartmentPresident Joe Biden paid a visit to the Shanksville Volunteer Fire Company in Pennsylvania, which was first to respond to the Flight 93 crash on Sept. 11, 2001.Up Next in news6 moments of silence September 11, 2021America remembers 9/11 attacksSeptember 11, 2021Vice President Kamala Harris speaks at 9/11 memorial ceremony in Shanksville, PASeptember 11, 2021