Another one of those "I didn't know everyone didn't know this" stories: on 9-11, the nearest Air Force fighters were unarmed, but scrambled anyway, determined to do whatever it took to keep another plane from crashing into something. It didn't work out as necessary... Flight 93 had already crashed in a field when the F-16s were in the air. What wasn't discussed in the articles I read about the incident was that one of the pilots was the first woman assigned to the squadron.