Trevor Thrall is a senior fellow for the Cato Institute’s Defense and Foreign Policy Department. Thrall is an associate professor at George Mason University’s Schar School of Policy and Government. He teaches courses in international security, political communication, and U.S. military intervention. His recently edited book, American Foreign Policy and the Politics of Fear: Threat Inflation since 9/11 (Routledge 2009), examined why and how the Bush administration was able to build public support for the war in Iraq in 2003. The companion volume to that work, Why Did the United States Invade Iraq? (Routledge 2011), collects competing explanations about why the administration decided to go to war in the first place.