I don’t know all the ramifications of the two courts, but as I understand it, lots of terrorists (over 200 as I undersatnd it) have been tried in American civilian courts and are now serving time in SuperMax, including Richard Reid and the blind sheik.

As I also understand it, Mohammed has already plead guilty to his crimes so there is a VERY strong possibility there will be no jury trial, he will not pass go, he will not collect $200 and instead go directly to jail. And thereby not be given the chance to espouse his views.