That's a tough one.. my partner and I were just discussing this. Plenty of people have walked away from hijackings, when the reasons for it are money (well, not so much anymore), and political, as hostages. And as a hostage, you are only worth something if you are alive, and the people who stay alive are the ones that keep their mouths shut.

The thing is, how would you know if the lunatic who just overpowered the flight crew has planned your death and his own for the glory of god, or is someone who is looking to exchange you for a bunch of political prisoners? Do you think there will be announcements?