Sophia Moskalenko received her Ph.D. in psychology from the University of Pennsylvania in 2004. Her research on terrorism and radicalization has been presented at scientific conferences, government briefings, radio broadcasts, and international television newscasts. As a research fellow at the National Consortium for the Study of Terrorism and Responses to Terrorism (NC-START) she has worked on research projects commissioned by the Department of Defence, Department of Homeland Security and Department of State. With Clark McCauley, she has co-authored the award-winning Friction: How Conflict Radicalizes Them and Us, The Marvel of Martyrdom: The Power of Self-Sacrifice in the Selfish World, and Radicalization to Terrorism: What everyone needs to know.