> This is not an all-or-nothing proposition, there’s no reason for the slope to be slippery. I think that if you draft your country's constitution to say, "We

> This is not an all-or-nothing proposition, there’s no reason for the slope to be slippery. I think that if you draft your country's constitution to say, "We have freedom of speech, except for calling for genocide and/or denying the Holocaust," then that can work reasonably well, and it won't necessarily turn into a broader ban. If you actually write a short list of exceptions into your constitution, then that can work. But the US constitution isn't written that way. We have very broad freedom of speech, and the only way to curtail it is via the Supreme Court deciding that certain kinds of speech are somehow an exception to rules. Libel and slander are, of course, exceptions, but they're ancient ones with a lot of case law explaining exactly what's forbidden. There are other exceptions, mostly involving things like angry mobs. But if you want to start saying, "This speech is forbidden because it promotes bad ideas," then you need to fundamentally change how the Supreme Court interprets the first amendment. And once we go there, then we have no idea where we're going to wind up.