Hier noch ein Auszug aus

http://en.wikipedia.org/wiki/Ultra_%28WWII_intelligence%29

"Postwar consequences

F.W. Winterbotham, the first author to limn, in his 1974 book The Ultra Secret, the influence of Enigma decryption on the course of World War II , likewise made the earliest contribution to an appreciation of Ultra's postwar influence, which now continues into the 21st century — and not only in the postwar establishment of Britain's GCHQ (Government Communication Headquarters) and the United States' NSA (National Security Agency). "Let no one be fooled," Winterbotham admonishes in chapter 3, "by the spate of television films and propaganda which has made the war seem like some great triumphant epic. It was, in fact, a very narrow shave, and the reader may like to ponder [...] whether [...] we might have won [without] Ultra." "