The Supreme Court of the United States is inclined to respect the moderation policies of social networks. Judges debate how to establish criteria on freedom of expression on platforms, warning that it is a “minefield” The decision made by the Supreme Court has extraordinary importance for the future of social network and the content they disseminate.

If the platforms that passively host the speech of billions of people are themselves the spokespersons and can discriminate, there will be no public square to speak of, writes Julian Zelizer.