I am all for closing Guantanamo (as well as stopping the horrible brutality in US prisons -- which is a much more pressing, but more "hidden" problem) but it's counter productive to compare US to a totalitarian regime. You are still free to leave United States, to hum a tune from a counter-regime movie, etc... without being thrown in Guantanamo. Many prisoners are also released from Guantanamo. It is legal to openly run a presidential campaign -- and win -- promising to close Guantanamo (but alas, it is not illegal to fail to follow through on this core promise).

In fact, the danger of United States becoming totalitarian is low: creeping authoritarianism, police state tactics, "law and order" used to justify horrid prison conditions and insane sentences, "reasons of state" blackholes (like aforementioned Gitmo), are real dangers. Plurality of the world is governed by either hybrid or authoritarian regimes (which most usually serve to satisfy their rulers' thirst of money and power); North Korea, a few former USSR republics, and perhaps areas of failed states controlled by totalitarian factions are the only unambiguously totalitarian states.

However, by hinting at moral equivalence between United States and North Korea, you end up serving those advocating this creeping authoritarianism: they can now present outlandish arguments that since those opposed to Guantanamo "apologize" for North Korea (note, I am not accusing you of this -- you are not saying North Korea is justified in what they do, but this could easily be spun as such!), advancement of their goals is advancement of North Korea's, Taliban's, etc... goals.

I'm saying this as somebody who feels very strong about torture being an unconditional and absolute moral wrong, sees Guantanamo as representing a very evil and dangerous tendency, and also sees current prison conditions in US as something that -- in the future -- will be seen in the same light as the breaking wheel and the torture rack. Comments like this do not help; just don't do this -- instead, speak up for human rights of all individuals (whether or not their testimony looks like it "serves US agenda" or "helps the terrorists").

[Edit: the big reason I feel strongly about this is that I came from former USSR myself. I remember many Americans, especially those who were unhappy with US behaviour during Cold War would always speak about how US was slighting "my guys", "my country", and being sorry for break up of USSR. They were surprised why I would speak so negatively about "my country" -- as if government and country were equivalent, Cold War was a morally neutral football match, and as if my country wasn't one my family willing adopted and chose to make their home, that is the US.]