ROBERT WALLACE is the former director of the CIA's Office of Technical Service and lives in Virginia. A recipient of the CIA's Intelligence Medal of Merit, Wallace founded the Artemus Consulting Group in 2004, providing management and intelligence counsel to corporate and government clients. He is also a contributor to the oral history program of CIA's Center for the Study of Intelligence.
H. KEITH MELTON is an internationally recognized author, historian, and expert on clandestine devices and technology. He is the technical tradecraft historian at the Interagency Training Center in Washington, D.C. He has assembled the world's largest collection of espionage devices and lectures widely throughout the U.S. intelligence community and abroad. He resides in Florida.
HENRY ROBERT SCHLESINGER is an author and journalist who has covered intelligence technologies, counterterrorism, and law enforcement. His work has appeared in Popular Science, Popular Mechanics, Technology Review, and Smithsonian magazine. He lives in New York City.