A growing number of politicians and journalists are calling for the silencing of certain opinions to protect the public against "hatred" and "falsehood." The first casualty of this campaign will be the truth.
It is tempting to think that we can promote a more truthful and tolerant society by suppressing false and hateful speech. But we immediately run into a severe problem: society is rife with disagreement. So the only way to suppress falsehood and hatred is through brute power.