New York City experienced a crimewave in the 1970s, and again during the crack epidemic of the 1980s and early 90s. Now violent crime – specifically, homicide – is surging again. Why? And what do we need to do to avoid a repeat of the terrible, tragic days of the past? Bob asks this of his guest, Zachary W. Carter, a former U.S. attorney and former judge, who has also served as New York City’s Corporation Counsel.