The epidemic of sexual misconduct targeting children in government schools is back in the headlines, and it is even worse than previously known. According to the latest estimates, a shocking 17 percent of students in government schools will be victims of some sort of sexual abuse at the hands of teachers and faculty. That represents about 8 million children. Perhaps even more alarming than the exploding level of abuse is the fact that teachers’ unions and the political establishment continue protecting the perpetrators, critics and advocates say. Even in conservative states such as Texas, teachers rape and sexually abuse children...