Martin Gurri, a visiting research fellow at the Mercatus Center at George Mason University, is a former CIA analyst specializing in the relationship of politics and global media.  His book, The Revolt of the Public and the Crisis of Authority in the New Millennium, first published in 2014 and updated in 2018, has been praised for foreshadowing the political shocks of Brexit and the rise of Donald Trump. Mr. Gurri has published numerous articles, studies, and opinion pieces on geopolitical- and media-related topics.  His blog, The Fifth Wave, pursues the themes first elaborated in The Revolt of the Public.