When the American media published photographs of U.S. soldiers abusing prisoners at Abu Ghraib, the Bush administration assured the world that the abuse was isolated and that the perpetrators would be held accountable. Over the next three years, it refined its narrative at the margins, but by and large its public position remained the same. Yes, the administration acknowledged, some soldiers abused prisoners, but these soldiers were anomalous sadists who ignored clear orders. Abuse, the administration said, was aberrational-not systemic, not widespread, and certainly not a matter of policy....

When the American media published photographs of U.S. soldiers abusing prisoners at Abu Ghraib, the Bush administration assured the world that the abuse was isolated and that the perpetrators would be held accountable. Over the next three years, it refined its narrative at the margins, but by and large its public position remained the same. Yes, the administration acknowledged, some soldiers abused prisoners, but these soldiers were anomalous sadists who ignored clear orders. Abuse, the administration said, was aberrational-not systemic, not widespread, and certainly not a matter of policy....