I don't think the Pentagon or the U.S. Government was involved in the release of the photos. There was money to be made in selling those photos, and that makes it almost inevitable that somebody is going to find a way to sell them. But I think that particular "somebody" should be found and punished.
On the other hand, I don't think it's right for people to say it's OK to publish this sort of stuff because Saddam was a demon. As I recall, there were some horrible pictures published of Mussolini after his death. It's true that Mussolini was a monster - but that doesn't make it right for the "good guys" to display his body once he's dead.