H. Keith Melton, a graduate of the U.S. Naval Academy, is an intelligence historian and a specialist in clandestine technology and espionage "tradecraft." He is the author of several books, including CIA Special Weapons and Equipment, Clandestine Warfare, and The Ultimate Spy Book.
Robert Wallace retired from the CIA in 2003 with thirty-two years of service as an operations officer and senior executive, including an assignment as director of the Office of Technical Services. Wallace is coauthor, with H. Keith Melton, of Spycraft: The Secret History of the CIA's Spytechs from Communism to Al-Qaeda.