TORTURE IS NEVER OK, SO DON'T DO IT.
That these people will not stand trial for crimes against humanity has yet to be seen, the list has been made. Bush et. all. did in Iraq exactly what we hung the Nazis for at the end of WWII. Personally I would rather see the lot of them on trial for treason during time of war (the fact that they declared the war is just perfect irony) which is capital offense.
The charges have been filed however, which is going to make it almost impossible for any of these people to travel overseas after they leave office, witness the old Rumsfeld being forced to retreat from France this year faster than the French ever retreated in front of the Germans. Proving himself the true coward that is was, and is.
Impeach and imprison, its the only way. And for those who think its too late to impeach, its not, because among other things a guilty verdict would remove all future support (money, staff, office space, use of official transportation and Secret Service protection) from these people, and make it impossible for them to ever hold office again. Its the least we can do.
My dream is that we would indite them for treason with capital charges attached, then ship them off to The Hauge to stand trial - no matter what the outcome, they could never come home, because Europe will not extradite to a possible death penalty, so they would in effect become people without countries. Perhaps their pals in the Kingdom of Saudi Arabia might take them in, though making them live in Iraq would be even better. After all, they freed Iraq, I'm sure they would get a warm welcome.