Public executions were once commonplace American spectacles. In one instance, Puritan clergymen convicted and executed nineteen people for the "crime" of witchcraft. On the other side of the country many years later, San Francisco's city fathers held "official" vigilante hangings. But today, executions are rigidly controlled bureaucratic procedures authorized by the state. In The Hangman's Knot: Lynching, Legal Execution, and America's Struggle with...