This high-interest book reveals the fascinating and secretive world of undercover operations. Many agencies utilize undercover agents, from local and state police to federal agencies like the CIA, the Secret Service, and the armed forces. Through engaging text, readers learn why there is a need to go undercover and the many clever ways operatives go deep undercover to get information from the enemy. Readers also discover how these agencies use cutting-edge technology to solve cases. Legendary undercover cases from around the world round out this exciting volume and keep readers turning the page.