Specialists from Ireland, the United Kingdom, Sweden, the Netherlands, Germany, France, Spain, Italy and Greece analyse the development of threat perceptions concerning terrorism and counter-terrorist policy-making in their respective countries. To facilitate comparisons between their findings, they have worked from an identical set of questions. Their chapters are followed by contributions on relevant policy-making and decisions in the European Union, and on the European input in United Nations policy-making processes. A summary of main conclusions and recommendations is also presented. This book will greatly interest policy-makers, law students, students of international security and journalists.