From what I understand, which is probably very little, since he is an American Citizen, AND not a member of the US military, he cannot be tried under a US military tribunal. He has to be tried under U.S. federal courts, with all the rights as such.
Also about the "humane treatment" of the terrorists, I do not think they are lawful combatants, as they deliberately targeted civilians, therefore they should not be protected under the geneva convention as POW's. It is hardly fair to compare the treatment of the Al Qaeda terrorists at the hands of the U.S. to the way the Vietcong camps were run. Have you ever met an american POW from Vietnam? If you haven't I suggest you do and listen to their stories before you begin to compare our treatment of the terrorists with what went on back then. Do you think that any american or allied soldiers captured in Afghanistan would be treated any more humanely than those in Guantanamo Bay? They would probably have been treated alot worse, much like the POW's of the Gulf War, if they weren't just shot outright.
Everyone likes to point out when the U.S. doesn't do things quite "by the book" but no one really seems bothered if countries that don't agree with U.S. policies bend or break the rules for their own benefit.
