Kelly M. Greenhill is Associate Professor at Tufts University and Research Fellow at Harvard Kennedy School of Government's Belfer Center for Science and International Affairs. She is author of Weapons of Mass Migration (Cornell Studies in Security Affairs)--winner of the 2011 International Studies Association's Best Book of the Year Award--and co-author and co-editor of Sex, Drugs and Body Counts: The Politics of Numbers in Global Crime and Conflict (Cornell University Press) and The Use of Force: Military Power and International Politics, 8th ed. Greenhill's research has also appeared in a variety of other venues, including the journals International Security, Security Studies, Civil Wars, and International Migration, in media outlets such as the New York Times, the Los Angeles Times, Foreign Affairs, the International Herald Tribune, and the British Broadcasting Company, and in briefs prepared for the U.S. Supreme Court and other organs of the U.S. government. Greenhill is currently completing a new monograph, a cross-national, multi-method study that explores why, when, and under what conditions, contested, "extra-factual" sources of political information--such as rumors, conspiracy theories, myths and propaganda--materially influence the development and conduct of states' foreign and defense policies. Outside of academia, Greenhill serves as a consultant to agencies of the US government and to other governmental agencies and non-governmental organizations.