All Sides with Amy Juravich Mass Incarceration in the U.S. ÐÇ¿ÕÎÞÏÞ´«Ã½ 89.7 NPR News | By admin Published April 19, 2010 at 11:00 AM EDT Email Listen • 0:00 The U.S. leads the world in the number of inmates in prison or jail, and a majority of prisoners are African-American or Hispanic. Ohio State University Moritz College of Law professor Michelle Alexander discusses her book, .