The U.S. Intelligence Community continues to adjust to the 21st Century environment. In the post-Cold War world, terrorism, narcotics trafficking and related money laundering is perceived both as criminal matters and as threats to the nation's security. Priority continues to be placed on intelligence support to military operations and on involvement in efforts to combat transnational threats, especially international terrorism. Growing concerns about transnational threats are leading to increasingly close co-operation between intelligence and law enforcement agencies. This book presents new in-depth analyses of developments in the field.