The Central Intelligence Agency did not just recruit spies and steal secrets. It built a hidden world of aircraft, satellites, cameras, listening devices, disguises, and experimental tools designed to reach places human agents could not.From the U-2 and Corona satellites to dead drops, miniature recorders, and inventions that sounded too strange to be real, CIA technology pushed Cold War espionage into new territory. Some breakthroughs changed the balance of power; others exposed j...