Twenty years ago, the Supreme Court ruled that state laws that interfered with the free exercise of religion were constitutional provided their requirements applied equally to everyone. At the time, I and others warned that the Court’s ruling was a blow from which religious freedom might never recover. Twenty years later, I’m sad to say, we were right. The decision, Employment Division v. Smith, involved two Oregon drug counselors who were fired for using peyote during a Native American religious ceremony. While it makes intuitive sense that drug counselors should be fired for using illegal drugs, the majority decision, written...