19 years ago today Al Qaeda terrorists seized four commercial jets with the intent to use them as suicide bombs against American targets.  Three of these succeeded, resulting in the collapse of both towers of the World Trade Center in New York and massive damage to the Pentagon.  The fourth attempt was foiled by the plane's passenger over the skies of Appalachia.  Today we tell the story as seen from the ground in Shanksville, Pennsylvania, where the plane crashed. Thanks for listening.