How not to keep a secret

Joe Rochefort - Breaking The Japanese Code

Vastly outnumbered and outgunned, America's triumph at Midway seems like a miracle until you look at the key event that paved the way to victory: Breaking the secret Japanese military code. Discover how an intrepid group of code breakers made this victory possible, and meet Joe Rochefort, their eccentric leader, an oddball genius who wore a smoking jacket and bathrobe to work, but whose brilliance helped put an end to Japanese dominance in the Pacific.