This book analyzes the sources and results of the fourfold increase in the U.S. correctional population since 1970. It considers the following themes: the value of punitiveness, defined as penal harm; research on crime and criminals; concerns about victims of crime; and concerns about community safety. It also analyzes the relationship between social problems and penal harm, such as poverty and crime during the twenty-year period of correctional expansion. The author argues that a careful review of proposals for expanded penal harm cannot be justified. The growth in corrections was not caused by crime nor has it reduced crime. Clear describes a new strategy for corrections based on his examination of the politics of social control and the growth in penal harm.