On September 11, 2001, at 10:03 a.m., United Flight 93 ended in a fiery crash in Shanksville, Pennsylvania.1 Passengers had just stopped hijackers likely aiming to destroy the U.S. Capitol building in Washington, D.C.2
Earlier that day, three other teams of jihadists had flown similar suicide missions. Two planes collapsed the Twin Towers of the World Trad…
