Can you really not make a distinction between cold shower and televised beheading/castration. I agree there is something very wrong with this country if that is the case. I've spent enough Karma today.
"Cold shower" is a joke of an understatement. These men were kept awake for over 7 days at a time, subjected to sustained waterboarding, slapped and thrown around, left to suffer with festering bullet wounds, etc etc. All that while being told that their families were going to be raped, tortured, and killed.
I know if I was personally subjected to those things I might not be so averse to having my head cut off.
I ask you the same thing I asked Rayiner above: try it for yourself.
Take a letter size piece of paper and put it on the floor. Strip naked. Have a "cold shower", then stand on that piece of paper for just two hours.
Bonus points if you manage to stay standing with a wet cloth bag on your head. Extra points if you manage this after having been on reduced calories and no sleep for 48 hours.
In your case nothing happens if you step off the paper.
I don't know that you should really suggest this. I've had hypothermia, it is quite unpleasant. And you don't know the state of his health, a myriad of bad things could happen.