Dr. John Horgan is Director of the International Center for the Study of Terrorism at the Pennsylvania State University, where he is also Associate Professor of Science, Technology and Society. Author of over 60 publications, he is an expert on radicalization and the psychology of terrorism. His books include The Psychology of Terrorism (2005), The Future of Terrorism (1999, with Max Taylor), and Walking Away from Terrorism: Accounts of Disengagement from Radical and Extremist Movements (2009). He is a member of the Editorial Boards of Terrorism and Political Violence, Journal of Investigative Psychology and Offender Profiling, Behavioral Science of Terrorism and Political Aggression, and the Journal of Strategic Security. In 2010 he was appointed to the Research Advisory Board of the FBI’s National Center for the Analysis of Violent Crime (NCAVC).

His new book, the forthcoming Divided We Stand: The Strategy and Psychology of Ireland’s Dissident Terrorists (with Oxford University Press), will be released in late 2011. The book presents a detailed analysis of dissident Irish Republican terrorists (focusing on the Real IRA, Continuity IRA, and Oglaigh na hEireann) from 1997-today.