National security is a key concern for individual nations, regions, and the global community, yet globalism has led to the perfusion of transnational crime such that it now poses a serious threat to the national security of governments around the world. Whether attention is concentrated on a particular type of transnational crime or on broader concerns of transnational crime generally, the security issues related to preventing and combatting transnational crime remain of top-priority concern for many governments. Transnational Crime and Global Security has been carefully curated to provide students, scholars, professionals, and consultants of criminal justice and security studies with comprehensive information about and in-depth analysis of contemporary issues in transnational crime and global security. The first volume covers such core topics as cybercrime, human trafficking, and money laundering and also contains infrequently covered but nevertheless important topics including environmental crime, the weaponization of infectious diseases, and outlaw motorcycle gangs. The second volume is unique in its coverage of security issues related to such topics as the return of foreign terrorist fighters, using big data to reinforce security, and how to focus efforts that encourage security cooperation.