What is the most enduring photographic image of the conflict in Iraq? Is it an image of a wounded soldier or an orphaned child, or is it the photo of a hooded Abu Ghraib detainee, balanced on a box with wires connected to his body? We talked in May with Academy Award-winning documentarian Errol Morris. His recent film about the Abu Ghraib prison controversy and its aftermath is “STANDARD OPERATING PRODCEDURE”