Some number of Americans get their news from Comedy Central’s “The Daily Show.” That makes one episode this week particularly interesting, and we hope viewers get the underlying message. After the terrorist attack in Minnesota over the weekend, a local ice cream shop owner put up a sign that read, “Muslims Get Out.” Trevor Noah, now the host of “The Daily Show,” used his opening monologue to lay into the business owner:

> “This man genuinely thought people who go around blowing people up would be stopped by a sign? You realize you’re talking to terrorists, not vampires. They don’t need to be invited in, alright? Or maybe he’s onto something, because if you think about it, we’ve never tried that. We’ve never actually tried to repel terrorists with signs. Yeah, maybe that’s all the airports need is a sign that says, ‘No Terrorists,’ yes? Yeah, and then guys are going to be walking going, ‘Oh, I was going to blow up the airport, but the rules are rules and they said I can’t come in. They said I can’t. They said I can’t come in.’”

Obviously, the store owner didn’t intend to thwart a terrorist attack with a sign. But Second Amendment defenders should immediately recognize Noah’s logic. No “Gun Free Zone” sign has ever stopped a criminal. In fact, those signs merely indicate where a mass murderer would be unchallenged by an armed citizen. Every major mass shooting in recent years has occurred in a gun free zone. As Sean Davis notes, “Bad people who want to murder you don’t care about your stupid signs and stupid laws.”

On the flip side, as we also write today, citizens exercising their Second Amendment rights can be one of the best deterrents and foils to terrorism. Fortunately, more Americans are realizing — Comedy Central’s efforts notwithstanding — that isn’t a joke.