In regards to the Gitmo thing, if I may.
Personally I didnt have a problem with the "unlawfull combatants" designation, thats what they are, and its been an issue with military forces since there were standing armies. Those that say it was an invented designation are full of crap. Armies have to deal with non-uniformed, non-recognised fighters, thats nothing new.
You have two basic categories, "guerrilas" (insurgents), and terrorists (A-Q et al). The former should be given some basic protections under military law, and dealt with by the military, the latter, first by the military, and then handed over to the courts for criminal hearings.
As with Gitmo itself...it made sense to send them there as a "detainee camp" during the campaign, and I see no problem with it. Closing Gitmo doesnt really change anything, you just have to send them somewhere else after capture, so thats just window dressing, imho. You cant just say "here is your court date be sure to be there" and release them in Afghanistan or Iraq by the roadside.
...however, I think the US should have expidited the process once they were there. Ie, get the intel you need, then decide on what route to process them: Federal Custody and Trial, a Courts Martial, or Release (if deemed appropriate). The USA is a nation of laws, and it should be no different in this case, emotions aside, but get on with it, dont drag it out for years and years. If they have a date with a court (military or other), then get it done. I have no love for any of them either, but process them and move on.
I think thats partially the point Powell was making, and I understand the US Courts have agreed with some of the above. Essentially you "own the problem" once you decide to take them into custody. It can be a messy process, but thats just the way it is.
In any case, thats how I see some of it for what its worth.