As a reminder, this was John "Straight Talk" McCain in 2005:
The mistreatment of prisoners harms us more than our enemies.
In my view, to make someone believe that you are killing him by drowning is no different than holding a pistol to his head and firing a blank. I believe that it is torture, very exquisite torture.
And this was Straight Talk McCain in Oct 2007:
Anyone who knows what waterboarding is could not be unsure. It is a horrible torture technique used by Pol Pot and being used on Buddhist monks as we speak.