#US - 82 Years Before Edward Snowden, There Was Herbert O. Yardley - The rogue surveillance bureaucrat revealed a trove of American secrets, cracked Japanese code, coerced Western Union into turning over cables, and won big at poker.

http://www.theatlantic.com/politics/archive/2013/12/82-years-before-edward-snowden-there-was-herbert-o-yardley/282019/

http://www.nsa.gov/public_info/_files/cryptologic_spectrum/many_lives.pdf