Liberal democracy offers religious believers a bargain. Accept, as a price of citizenship, that you may never impose your convictions on your neighbor, or use state power to compel belief. In return, you will be free to practice your own faith as you see fit  and free, as well, to compete with other believers (and nonbelievers) in the marketplace of ideas.

That’s the theory. In practice, the admirable principle that nobody should be persecuted for their beliefs often blurs into the more illiberal idea that nobody should ever publicly criticize another religion. Or champion one’s own faith as an alternative. Or say anything whatsoever about religion, outside the privacy of church, synagogue or home.

A week ago, Brit Hume broke all three rules at once. On a Fox News panel, Hume suggested that the embattled Tiger Woods consider converting to Christianity. “He’s said to be a Buddhist,” Hume noted. “I don’t think that faith offers the kind of forgiveness and redemption that is offered by the Christian faith.”

A great many people immediately declared that this comment was the most outrageous thing they’d ever heard. Hume’s words were replayed by Jon Stewart on the Daily Show, to shocked laughter from the audience. They were denounced across the blogosphere as evidence of chauvinism, bigotry and gross stupidity. MSNBC’s Keith Olbermann claimed, absurdly, that Hume had tried to “threaten Tiger Woods into becoming a Christian.” His colleague David Shuster suggested that Hume had “denigrated” his own religion by discussing it on a talk show.