Princeton Alumni Weekly: Fifteen years ago, Laurence Ralph began volunteering with local community groups “to get a break from grad school” at the University of Chicago, not as an academic pursuit, he said.  Soon, he was drawn into the African American community’s concerns, particularly police violence. Ralph’s latest book, The Torture Letters: Reckoning with Police Violence (University of Chicago Press), grapples with that legacy of violence. https://bit.ly/2UFFsQx