In this quiet seaside town in northern France, thousands of miles of cables are manufactured each year and then dropped into the ocean to become the superhighway of the internet. Over 95% of international internet traffic travels from continent to continent through cables on the ocean floor that, for the most part, are no larger than a garden hose. That translates into $10 trillion a day in economic transactions that go over these cables that most people don't know exist.There are nearly a million miles of ...