In this video, we discuss about anger in politics. Some commentators have defined anger as “the shared fuel of mass shooters and everyday murderers”. Schools in the United States adopted devices to detect aggression and anger in the voices of students, in order to allow early intervention and disruption to prevent mass shootings and other episodes of violence. Algorithms search for expressions of anger and vitriolic language in social media, with the hope of detecting and preventing hate crime and violence in real life. Can we really prevent violence by detecting early signs of anger? Is anger in political discourses a precursor of violent extremism? We discuss these questions with Prof Leonie Huddy. Leonie is a Professor of Political Science at the State University of New York at Stony Brook. She studies political behavior in the United States and elsewhere through the lens of intergroup relations, with a special focus on gender, race, and ethnic relations. Her recent work extends that focus to the study of partisan identities in the United States and Western Europe. Leonie is past-president of the International Society of Political Psychology (ISPP), serves on the American National Election Studies Board of Overseers, appears regularly on CSB Radio as an exit poll analyst, and serves on numerous editorial boards in political science. She has written extensively on social and political identities, emotions, reactions to terrorism, gender and politics, and race relations.