More Americans are sent to jail than ever before in human history. Most of them are young, African American men living in neighborhoods of concentrated poverty. Mass incarceration devastates the communities where it has removed a generation of residents, with long-term impacts for generations. Dr. Todd Clear, professor at Rutgers University's School of Criminal Justice, presented to the Purpose Built Communities annual conference in Orlando in 2018 about how over-incarceration impoverishes communities, hurts our country, and ultimately fails to achieve its original goal - to deter criminal behavior and lower the overall crime rate.