The pictures from the Madrid bombings prompt grief and horror — along with fresh questions about terrorism in the post-Sept. 11 world. Is al Qaeda influencing other movements, directly or indirectly? Can the fight against terror be more effective? Are terrorist groups interconnected, even if their ideologies differ?
*Author of Terror in the Name of God
*Lectures on terrorism at the Kennedy School of Government at Harvard University
*Professor of International Relations, University of St. Andrews, Scotland
*Chairman, Center for the Study of Terrorism and Political Violence, also at St. Andrews
*Lecturer at the Kennedy School of Government
*Served on the National Commission on Terrorism
Juan Pedro Velazquez
*Deputy editor, of the International Desk of El Pais, Spain's leading daily newspaper.
*Senior associate at the Carnegie Endowment for International Peace
*Author of Of Paradise and Power