Book excerpt: The role of intelligence in US government operations has changed dramatically and is now more critical than ever to domestic security and foreign policy. This authoritative and highly researched book written by Jeffrey T. Richelson provides a detailed overview of America's vast intelligence empire, from its organizations and operations to its management structure. Drawing from a multitude of sources, including hundreds of official documents, The US Intelligence Community allows students to understand the full scope of intelligence organizations and activities, and gives valuable support to policymakers and military operations. The seventh edition has been fully revised to include a new chapter on the major issues confronting the intelligence community, including secrecy and leaks, domestic spying, and congressional oversight, as well as revamped chapters on signals intelligence and cyber collection, geospatial intelligence, and open sources. The inclusion of more maps, tables and photos, as well as electronic briefing books on the book's Web site, makes The US Intelligence Community an even more valuable and engaging resource for students.