Animating these reforms is a belief that the United States incarcerates too many people and that prison is ineffective or unjust. Many academics, journalists, and activists criticize incarceration as unduly harsh on lawbreakers and corrosive to inner-city communities. Such organizations as the National Research Council of the National Academies, American Society of Criminology, and Academy of Criminal Justice Sciences have assailed the “systematic” and “entrenched” racism that allegedly characterizes our criminal-justice system. For many on the left, incarceration is simply a social evil. Some on the right also back such efforts, convinced that reducing prison populations will save tax dollars or that embracing reform will yield political benefits.