Failure to foresee and defend against the US terrorist attacks of 11th September 2001 has drawn unprecedented public attention to the intelligence services and modern-day global espionage. From the CIA's involvement in the Middle East and various aspects of European, Asian and African politics, to FBI agents releasing highly classified national security information to Russia, this reference source contains over 500 entries covering every aspect of modern-day espionage. The book includes entries covering aspects of counter-terrorism, funding and commercial terrorism and biographies of spies, politicians and diplomats. Key historical events and scandals are examined and terminology and equipment are explained.