etly had is practically self-explanatory. What the United States held in its hands was the ability to receive Japanese codes and decrypt them before the codes even reached their destination. The most important part of it all was that Japan had no idea of the American's ability to break their codes.
             To reemphasize the importance of the codes, the author described in detail some specific messages that were intercepted by the Americans during this time of war. Most likely the most important of the messages that were intercepted by Magic (the codename for the code-breaking ability), was the fourteen part message that was part of the direct line of events that led to Pearl Harbor. Though in the message an exact time was recorded as to when the attack was to take place, the Japanese so much as said that they were up to some sort of revenge against the United States for not accepting the proposed modus vivendi. This was not overlooked as though it may seem that way. What was overlooked however, was that the Japanese would send three-fourths
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