The purpose of this editorial is to explore the relationship between the new global emphasis on terrorism and the developing academic and practical fields of disaster management. It includes an appraisal of the place of terrorism among the various forms of disaster, a consideration of its relationship to risk assessment and its place in the practical handling of risks and incidents, and some reflections on the role of the private sector in security management. The influence on the current attitude toward managing the terrorism threat by the evolution of the disaster management field is considered and some of the problems with defining scenarios for counter-terrorism planning also are discussed.