A number of essays address the history and tactics of terrorism in Northern Ireland, India, and Colombia. Essays on terrorist tactics in general cover terrorists' use of explosives and the strategies and tactics of guerrilla warfare. One essay discusses biological weapons, defense against them, and possible reasons why terrorists have not made use of these weapons thus far. Essays on counterterrorist tactics include a discussion of the structure and policy under which the United States addresses terrorist incidents, international agreements that facilitate the combatting of terrorism and transnational crime, and the circumstances of multinational business executives at risk for terrorist attacks. An essay on INTERPOL's analysis of trends in terrorism and its prevention notes terrorism's increasing sophistication in its circumvention of preventive measures. Actions to counter this progression of terrorist tactics are suggested. Other essays on counterterrorism discuss the management of the incarcerated terrorist/radical, the role of intelligence in combatting terrorism, and the evolution of police counterterrorism efforts. Subject index.