the unused theory seems pretty plausible....
on the other hand, you would think that someone... like freeh, for example, would have spilled the beans by now; since if this was actually a cover-up, it could only have been covered up for one reason.
It's really difficult to believe that the entire NTSB, a collection of pretty mild-mannered nerds, and all the NTSB folks on the show tonight are part of a grand conspiratorial coverup or that their families will be killed if they speak out or something.
I realize most on FR really want it to have been a terrorist missle, but I do hope some did watch this so that they were exposed to somthing besides Cashill's rants (I really think there are a lot of people who have those as their source of knowledge about the crash.)