For a society to guard against malicious ideological threats, it must at least recognize and respect the fact that some citizens will invariably believe in the power of God as a cohesive force separate from the power of the state. This is particularly true for any government run by militant atheists or militant theocrats. But why would any society believe they need to protect themselves from malicious ideas? To be sure, I’m not talking about recruiting a division of thought police to guard against threats to social morality. Free societies recognize freedom of religion as sacrosanct --- either consciously or...