The protests sweeping the country for more than a week are calling for an end to racism and discrimination by police and in the law. Guy-Uriel Charles, professor of law at Duke School of Law, about how protests can lead to legislation and political change. Also, NPR Books editor Petra Mayer joins host Jeremy Hobson to talk about the new "Hunger Games" prequel, "The Ballad of Songbirds and Snakes," and a few other book suggestions.