England. After more than thirty years of silence, the secrets of Bletchley Park are beginning to surface. Winterbotham’s book, “The Ultra Secret,” is published. Captain Winterbotham, in fact, had been insisting to the British government for some time that there was no longer any reason to keep the secret. Indeed, one of the reasons for maintaining the secret was that the Commonwealth countries, which had been encouraged to use Enigma after the war, had not used it for years. Incredibly, the British had distributed thousands of Enigma machines among the Commonwealth countries, Enigma machines captured at the end of the war (over thirty thousand had been built). These friendly countries were confident that the Enigma code had never been broken and that, having been used by the Nazis, it was the most secure. The British, conveniently, did nothing to disprove this, and continually decrypted the “secret” communications of Commonwealth countries, both political, military and commercial, from the late 1940s to the early 1970s.
