In Nevada, Missouri, a 16-year-old girl interested in becoming a cop started going on ride-alongs with officer Brian Hansen. He would eventually plead guilty to statutory sodomy after state investigators accused him of sexually abusing the teen in his patrol car and at a firing range. Hansen received probation, not jail time. As an extensive investigation by the Washington Post makes clear, the story is not an anomaly. Over “the past two decades, hundreds of law enforcement officers in the United States have sexually abused children while officials at every level of the criminal justice system…