On Sept. 11, 2001, the North American Aerospace Defense Command (NORAD) recorded the voices of military airspace controllers after planes crashed into the World Trade Center. Those tapes, previously withheld from the public, show an air traffic control system in disarray.
Vanity Fair writer Michael Bronner listened to 30 hours of the tapes and talks about his article "9-11 Live: The NORAD Tapes" with Madeleine Brand.
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