In World War 2 a Nazi General came up with a low-tech global communications scheme, "The Cylinder Program." Using bronze cylinders that could be buried or hidden in strategic locations all around the world, their secret agents could send messages back and forth. The preferred inducement to betray one's country was gold. Thus the cylinders were filled with gold coins to be used as seed money by their agents for bribery. A U-Boat assigned to distribute the cylinders in 1943 was challenged by a small patrol craft commanded by Ensign Bill Baker off Key West. The sub escapes, but unbeknownst to...