The urge for retribution is insidious and subtle, often rendering it unrecognizable. It clouds objectivity, stifling judgment and self-awareness. It camouflages as false notions of “deterrence,” “public safety and security,” “justice,” a “Biblical mandate,” and “a lasting peace,” among other rationalizations. Many individuals and societies, therefore, vehemently deny any accusations of vengeful motivation—even for genocide—while unsuspectedly succumbing to its irresist...