On Friday, 50 innocent worshippers were brutally slaughtered in Christchurch, New Zealand. Today, the reaction to the gunman’s video livestreaming of that attack reminds us why the First Amendment is so important.

After all, the gunman’s Facebook livestreaming of his massacre has sparked renewed calls for censorship constraints on social media companies such as Facebook and YouTube. The problem is that this censorship agenda offers a very slippery path to global authoritarianism.