Cass R. Sunstein is the Robert Walmsley University Professor at Harvard. From 2009 to 2012, he was administrator of the White House Office of Information and Regulatory Affairs. He is the founder and director of the Program on Behavioral Economics and Public Policy at Harvard Law School. Mr. Sunstein is author of many articles and books, including Republic.com (2001), Risk and Reason (2002), Why Societies Need Dissent (2003), The Second Bill of Rights (2004), Laws of Fear: Beyond the Precautionary Principle (2005), Worst-Case Scenarios (2001), Nudge: Improving Decisions about Health, Wealth, and Happiness (with Richard H. Thaler, 2008), Simpler: The Future of Government (2013), Why Nudge? (2014), and Conspiracy Theories and Other Dangerous Ideas (2014). He is now working on group decision-making and various projects on the idea of liberty.