Witnesses testifying before the committee include a former professional intelligence officer, two journalists, and a scholar, all of whom have examined this complex international problem. William E. Colby, former director of the Central Intelligence Agency, states that terrorism is a tactic that endangers innocent people in order to demonstrate a terrorist's power or to influence others. Another meaning of terrorism is that of secret attacks against authority and its representatives. The practical struggle against terrorism involves three elements: intelligence, security practices, and public support. Claire Sterling, an international journalist, points out that the Soviet Union had played a primary role in training, equipping, and sheltering terrorists in Western societies. However, a professor of modern European history states that rapprochement with the Russians with regard to terrorism is possible. Two prepared statements are included.