Cracking one of the most complicated cipher devices ever created -- the Enigma machine -- may not have been what Britain's Mavis Batey envisioned when she studied the German romantic poets at University College London when World War II broke out.
But when she dropped out of school to help with the war effort by becoming a nurse, her German-language skills caught the attention of her superiors, and soon she was asked to train for a more covert kind of duty.
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