Created in 1947, the Central Intelligence Agency plays an important part in the nation's intelligence activities, and is currently playing a vital role in the "war on terrorism." While the agency is often in the news and portrayed in television shows and films, it remains one of the most secretive and misunderstood organizations in the United States. This work provides an in-depth look into the Central Intelligence Agency and how its responsibilities affect American life. After a brief history of the agency, chapters describe its organization, intelligence/counterintelligence, covert operations, controversies, key events, and notable people.