With the highest imprisonment rate in the world, the United States is long overdue to address the issue of mass incarceration. With 2.2 million people behind bars in this country, what have been the effects? Has our prison system worked? We’re looking to examples in Europe to learn more. Many European models focus on rehabilitation rather than retribution. While some here in the U.S. remain skeptical about the European method of incarceration, many are beginning to implement changes and programs that take best practices from European countries and apply them here in the U.S.