Behind Cook County’s wrongful convictions, a sociologist finds entrenched police racism

Cook County is known as the wrongful-conviction capital of America. The National Registry of Exonerations lists 215 murder cases cleared here since 1989. Brown University sociologist Nicole Gonzalez Van Cleve is out next week [5/19] with a book about them. She writes that wrongful convictions stem from something more pernicious than shoddy law enforcement. HOST: LANE