All throughout history, secret agents have been involved in assassinations, revolutions, and wars spies and Traitors takes us on a fascinating journey through their undercover world Learn about the secret codes they used to protect vital messages See the fascinating equipment and special weapons that were part of the spy's trade. Look inside the shadowy world of the double agent. Learn how traitors sold the secrets of the atomic bomb. And see how advanced technology is still being used in spying operations today. Book jacket.