Before Edward Snowden’s infamous data breach, the largest theft of government secrets was committed by a U.S. Air Force sergeant whose espionage scheme and complex system of coded messages were made even more baffling by his dyslexia. Journalist Yudhijit Bhattacharjee joins The Steve Fast Show to talk about Brian Patrick Regan, the traitor who came to be known as The Spy Who Couldn’t Spell.