From Vanity Fair:
How did the U.S. Air Force respond on 9/11? Could it have shot down United 93, as conspiracy theorists claim? Obtaining 30 hours of never-before-released tapes from the control room of NORAD's Northeast headquarters, the author reconstructs the chaotic military history of that day—and the Pentagon's apparent attempt to cover it up. VF.com exclusive: Hear excerpts from the September 11 NORAD tapes. Click PLAY after each transcript to listen.
Read and listen here.