"Collateral damage" is a military term for the inadvertent casualties and destruction inflicted on civilians in the course of military operations. In Collateral Damage: Americans, Noncombatant Immunity, and Atrocity after World War II, Sahr Conway-Lanz chronicles the history of America's attempt to reconcile the ideal of sparing civilians with the reality that modern warfare results in the killing of innocent people. Drawing on policymakers' response...