Ash Bhagwat is a Distinguished Professor of Law and the Boochever and Bird Endowed Chair at the University of California, Davis School of Law. He clerked for Judge Richard Posner of the Seventh Circuit, and Justice Anthony Kennedy of the United States Supreme Court. He is the author of The Myth of Rights, published by the Oxford University Press, and Our Democratic First Amendment, published by the Cambridge University Press. This essay is based upon a book chapter, The New Gatekeepers?: Social Media and the “Search for Truth” in Gus Hurwitz, Kyle Langvardt and Elana Zeide, eds., "Media and Society After Technological Disruption," forthcoming from the Cambridge University Press.