Technically, this is a "Camp White Horse," not an "Abu Ghraib" story, but read this story from ABC News. One interesting note about this is that the prisoner, "allegedly subjected to beatings and karate kicks to the chest and left to die naked in his own feces" by Marine reservists, was "suspected of involvement in the ambush" of Jessica Lynch's unit. This at least suggests that he was a member of the Iraqi Army and hence a POW, so there would be no question of whether or not the full panoply of Geneva Convention rights accrued to him (Iraq being a signatory nation).