Errol Morris is curious by default. He wants to know; he needs to know (he once worked as a private investigator leading up to the making of The Thin Blue Line). He is determined to uncover, circumspectly, the stories behind historic and—for better or worse—iconic documentary photos. Opening with the first war photos, of the Crimean War, then on to photos of The Hooded Man at Iraq’s Abu Ghraib Prison and others, he probes and insists on dealing with facts at hand, eschewing emotional attachments that can cloud reasoning. It’s provocative, making for a quick read. RECOMMENDED.