At the end of the day though, it doesn't really matter. These men are largely their own punishment. They have to be them... everyday, They will have to wake up and function in their own skin... and there is no earthly escape from that.

The human mind is capable of great rationalization and denial, but somethings are too big for even these to operate effectively. If someone has tortured a child in front of his father, engaged in anal (or any other) rape, has beaten someone to death, or applied electrical shock and laughed... these things all rot the soul. These activities will haunt these men to the end of their days.

I would expect an epidemic of PTSD in a few years. For those not engaged in torture, treatment and support will be available, but for the torturers.... I doubt even the VA will understand.

Their life here on earth is going to be hard, and according to my tradition it will likely be much, much worse in the hereafter, unless they make a profound and sincere repentance that fully acknowledges the despicability of their actions.