OK, here's my stand on this stuff.
Any soldier guilty of beating, raping, electrocuting, burning, or killing a prisoner should be tried and if convicted, punished accordingly. These cases are getting a lot of attention, but I'm still of the opinion (yep, opinion, I wasn't there) that these incidents are the exception rather than the rule.
Most of the stuff I read about, except for being forced into mock (?) homosexual acts wasn't really worse than when I went to survival school, and I'm no Rambo. The people subjected to the humiliation, sleep deprivation, and so forth will walk out without any marks on their bodies. Their main complaint will boil down to, "They hurt my feelings."
So, I see the prisoner treatment falling into these two categories, 1) Bona fide abuse, and 2) Making them uncomfortable. The cases need to be dealt with individually, rather than painting the whole situation with a broad brush which is easy but intellectually lazy.