During the last ten years an increasing number of government and media reports, scholarly books and journal articles, and other publications have focused our attention on the expanded range of interactions between international organized crime and terrorist networks. A majority of these interactions have been in the form of temporary organizational alliances (or customer-supplier relationships) surrounding a specific type of transaction or resource exchange, like document fraud or smuggling humans, drugs or weapons across a particular border. The environment in which terrorists and criminals operate is also a central theme of this literature.These research trends suggest the salience of this book which addresses how organized criminal and terrorist networks collaborate, share knowledge and learn from each other in ways that expand their operational capabilities. The book contains broad conceptual pieces, historical analyses, and case studies that highlight different facets of the intersection between crime and terrorism. These chapters collectively help us to identify and appreciate a variety of dynamics at the individual, organizational, and contextual levels. These dynamics, in turn, inform a deeper understanding of the security threat posted by terrorists and criminal networks and how to respond more effectively.This book was published as a special issue of Terrorism and Political Violence.
