The Supreme Court on Tuesday heard the Trump administration’s appeal in a case involving three U.S. residents who FBI agents wrongly placed on the federal government’s “no fly list” as punishment for their refusal to spy on fellow Muslims. The men seek to hold the agents personally responsible for what they allege was a pattern of harassment designed to coerce them into becoming government informants in violation of their religious beliefs. The legal question at hand is whether a federal law that protects the free exercise of religion allows government agents to be sued for monetary damages. The lawsuit arose...