The number of people incarcerated in U.S. prisons and jails more than quadrupled between 1975 and 2005, reaching the unprecedented level of over two million inmates today. Annual corrections spending now exceeds 64 billion dollars, and many of the social and economic burdens resulting from mass incarceration fall disproportionately on minority communities. Yet crime rates across the country have also dropped considerably during this time period. In Do Prisons Make Us Safer? leading experts systematically examine the complex repercussions of the massive surge in our nation’s prison system.