Add Yahoo as a preferred source to see more of our stories on Google. "I was given one sentence, 'We are breaking German codes, end of story'." It was Ruth Bourne's first job out of college, when, ...

BLETCHLEY PARK, England – During World War II, the best brains in Britain cracked Germany's encrypted secrets but never broke their own code of silence. Now gray-haired and using walking sticks and at ...