> How do you know that something is extreme if you can't hear it? How do you engage individuals, hopefully productively, if you don't allow them to speak? Or,

> How do you know that something is extreme if you can't hear it? How do you engage individuals, hopefully productively, if you don't allow them to speak? Or, perhaps more importantly, how do you challenge or disprove their arguments? The answer to "bad" speech is to counter it and illustrate its flaws; banning some speech can have the effect of giving it credibility that it doesn't deserve.