At the start of the 1990s, the U.S. had more Black men (between the ages of 20 and 29) under the control of the nation's criminal justice system than the total number in college. This and other factors have led some scholars to conclude that, "crime control policies are a major contributor to the disruption of the family, the prevalence of single parent families, and children raised without a father in the ghetto, and the 'inability of people to get the jobs still available.'"
Craig Haney, Ph.D., and Philip Zimbardo, Ph.D., "The Past and Future of U.S. Prison Policy: Twenty-five Years After the Stanford Prison Experiment," American Psychologist, Vol. 53, No. 7, July 1998.