I have mixed feelings on it all: 1) I find it hard to view terrorists as anything other than those engaged in an act of war. That being the case it is hard to try enemy soldiers when they charge the lines and last I checked POWs do not get a trail. 2) I fully support the death penalty and this fellow deserves death if anyone does. 3) Yes, he is a US citizen so I believe you will find a provision in the US constitution that addresses treason if one wished to approach it that way. But you get a trial for that. 4) Suspension of rights well troubles me even in my mostly conservative heart.
So this is complicated and I think that is partly by terrorist design. Look at the discussion here and it shows how they sew discontent. I firmly believe many of the enemies of the US use the fact that the US mostly plays by the rules and they do not to their full advantage. We are right now forgetting the victims while worrying about this fellow's rights. This shows that in that how do you address a terrorist? If they are a foreign citizen then well I am sorry Bin Laden was dealt with in exactly the right way shot like the rabid animal he was. In the case of this fellow I suspect the enemy combatant tag is being applied because there is a wish to get military intelligence from him without having to publish that information publicly. Remember part of why terrorism succeeds is it blurs the line between military and civilian matters and causes these issues.
What I would like to see is that he is interrogated sans lawyer so intelligence may be extracted and put to use preventing furthers acts such as this. Then once that is done try him for treason with legal representation. If found guilty which I think he most likely will be exterminate him. Harsh yes, but I have no use for someone he blows up an eight year old child. And that is just the most striking to someone who is a father like me of the many reprehensible things that happened that day. Lives shattered and yes the kid is only 19, but you are a legal adult at age 18 so he should face the music like an adult. Our legal system is too slow, too cumbersome, and too complicated. It gives criminals and animals too many easy outs and I am quite tired of it. Or rather lets them delay things when their victims never had that luxury.