There are many aspects of terrorism that raise issues of justice that transcend national borders. Terrorist groups often train in one country to carry out their lethal attacks in another, or, where they operate entirely domestically, they often gain inspiration and material support from elsewhere. Another international aspect is the impact of anti-terrorist measures upon the capacity of national and international agencies to deal with many of the problem of inequities and iniquities in our world that seem to call for international response. So, it is important to address the philosophical and moral dimensions of contemporary terrorism and reactions to it when our concern is with questions of global justice.1