McCain said he will fight the war until it has been won. Having endured 5 years of torture at the hands of the Vietcong it is no surprise that he abhors torture. However, he needs to understand that bringing these terrorists to out shores and giving them rights is the wrong thing to do, so keep gitmo open McCain. He also needs to understand that waterboarding is not really torture. We know what Hillary or Obama will do, let them all go so they can go out and kill more American soldiers or maybe American civilians.
Talking with my cousin (Sgt in the USMC), he explained to me the reason waterboarding is no longer useful.
Waterboarding simulates drowning, and does so quite effectively! The subject believes they will drown, and will tell what they know. But that relies upon one VERY IMPORTANT THING: the subject BELIEVES that you WILL kill him.
Since the US Armed Forces have now been shown for the better part of 4 years to NOT kill prisoners, that threat is gone. If the threat was real, you - as the prisoner - had three choices to waterboarding:
1. Hold your tongue and die of drowning (what they believe was happening)
2. Tell a lie to stop the waterboarding, but be killed when the lie is revealed (your info was bad)
3. Tell the truth and live
Now that the real threat of waterboarding - death by drowning - is gone because the enemy KNOWS we don't kill prisoners AND they know that we used the waterboarding techniques, we've removed the sole penalty for choices number 1 and 2.
It's time to move to other techniques; waterboarding has lost its sole means of convincing people to talk. Keep or get rid of it, it won't work anymore.