Kelly M. Greenhill is Associate Professor at Tufts University and Research Fellow at Harvard University's Kennedy School of Government. Her book, Weapons of Mass Migration: Forced Displacement, Coercion and Foreign Policy was the winner of the 2011 International Studies Association Best Book of the Year Award. Greenhill is also co-author and co-editor of Sex, Drugs and Body Counts: The Politics of Numbers in Global Crime and Conflict and the eighth edition of The Use of Force: Military Power and International Politics as well as a variety of journal articles, book chapters and other publications. Greenhill is currently completing a new book that explores why, when, and under what conditions, "extra-factual" sources of political information (EFI)—such as rumors, conspiracy theories, myths and propaganda—materially influence the development and conduct of states' foreign and defense policies.