From all the sources that I hear, they did NOT, rpt NOT, shoot the plane down. The passengers were actually encouraged to make mobile phone calls to friends and relatives on this plane. What I hear is that they took some sort of vote and decided to storm the flight deck (two FA's had already been stabbed). The hijackers held a a red box which they said contained a bomb. As the storming of the cockpit happened, the bomb could have gone off and parts of the plane could have been scattered 2-6 miles before final impact. Again, my sources pretty close to the investigation say again that it was not shot down. But who knows in the world that this has turned into.