Marching Orders: The Untold Story of How the American Breaking of the Japanese Secret Codes Led to the Defeat of Nazi Germany and Japan

by Bruce Lee

The Secretary of War and the Chief of Staff, McCormack reasons, are “entitled” to have every item “carefully checked, evaluated and supplemented by all possible sources of intelligence … their time should not be wasted in reading odd and unchecked bits of information not related to attendant circumstances and given their proper value.” It also seems to McCormack that the daily reporting of decrypts is only one part of the job. “The real job was to dig into the material,” he said, “[and] study it in the light of outside information, follow up leads that it gave, and bring out of it the intelligence that did not appear on the surface.”