Between 1914-1917, communications technology, and the way to secure or intercept this kind of traffic, progressed dramatically. When the United States entered WWI in April 1917, it had to quickly catch up in these areas. Remarkably, the Americans made considerable progress by 1918. This success was partly due to Parker Hitt, an innovative Army officer who designed modifications for machine guns but truly excelled at cryptology and at bridging the divide between civilian industry and the Army....