He is a senior fellow at the National Security Studies Center at the University of Haifa, Israel, where he earned his doctorate. His book, Suicide Terrorism, was published by Polity Press in 2005. An edited volume, Suicide Attacks: Root Causes of the Culture of Death, is forthcoming (Routledge, 2006). Currently he is co-authoring a book to be entitled The Weapon of the Weak? The Paradox of Jewish Terrorism in Israel.