Ironically, I think the military tribunals were an attempt to appease the Left and give the detainees a little bit of due process.
The civil courts have no jurisdiction over the detainees, which complicates matters - and even if the civil courts could hear the detainees cases, their crimes were committed outside the scope of the civil courts, so the only verdict possible in a civil court would be a mistrial, and an order to release.
Which only further enlightens us to what the Left is trying to gain here at the expense of the war on terror. They see an opportunity to injure the President and will do everything possible, up to and including causing the release of hundreds of enemy combatants from our custody, to do so.
If not for the Left's insistence for due process for the prisoners, the review boards initially used probably would've stuck.
I agree.