Much of the fuss about the "torture" of terrorists, or non-military combatants, comes from the fuzzy thinking of the religious - both right and left - who somehow conflate the State with the Kingdom of God. This is not a biblically tenable position, for while the State "is a servant of God to you for good" (Romans 13:4), it is not presented as the Kingdom of God. This distinction is important. Were I to be a Roman householder with bondservants, they would be the servants of the household, not members of my family. While individual members of the government may be Christian, the government is not. While individual citizens of the country may be Christian, the country is not. A "Christian consensus" may hold sway in the Body Politic, but this does not make it Christian. The Kingdom of God is wholly Other than the kingdoms of mankind.
I believe that it says much of our society, and the echoes of former Biblical influence upon it, that so much effort has been put into finding non-lethal, non-maiming methods of persuading terrorists to part with intel. Torquemada and his ilk had quite an arsenal of effective persuasion; we could have gone with those, but instead, we have developed methods that leave the subject perhaps wet and breathless, perhaps emotionally shaken, but still whole. War is a nasty business, terrorism worse still, and that we still seek not to cross the line into Inquisitionville must needs be recognized and trumpeted.
Ooooooh, I'm wet.
Ooooooh, there is dog breath, and I'm scared.
Ooooooh, they shot the guy in the next cell, so I'll talk....Ah, they didn't really. Boy is my face red.
Ooooooh, they say that they will take out my family if I kill another three thousand of their citizens.
Seems rather tame, doesn't it? But even if it doesn't, the State, the governing authority HAS the authority to do that, and worse:
For if you practice evil, be afraid, for it does not bear the sword in vain; for it is a servant of God, a revenger for wrath on him who does evil. (Romans 13:4)
Much of the torture teapot-tempests are brewed from emotional squeamishness, not the accurate intel from God's Word. That said, what our interrogators do does not approach what has been ID'd as torture historically: beatings, maimings, burning, impromptu surgery, rape. Read some history, then maybe you will understand. The name "Club Gitmo" isn't as far-fetched as you thought.