Errol Morris in the New Yorker
I haven't yet seen SOP, but I imagine it mirrors much of what Errol Morris and Philip Gourevitch discussed in a different medium last month:
http://www.newyorker.com/reporting/2008/03/24/080324fa_fact_gourevitch
I'm particularly interested in the rapport Morris, a film director, must have built with "the woman behind the camera" at Abu Ghraib, Sabrina Harman for her to have spoken so candidly.