Anne Applebaum is a columnist, writer, historian and most recently, the author of "Twilight of Democracy: The Seductive Lore of Authoritarianism," a book that explores why authoritarian ideologies are on the ascendance in countries as diverse as Poland, Hungary, Spain, the United States and Great Britain. Benjamin Wittes spoke with Anne about the themes of the book: Why are all of these authoritarian ideologies on the rise now? What is the role of social media in their rise? What are the major themes that they have in common, and how different are they location by location? How did conservative ideology come to fracture the way it has over so brief a period of time? And how is the modern wave of authoritarianism different from earlier iterations of it?