Code Girls: The Untold Story of the American Women Code Breakers of World War II

by Liza Mundy

“Because you were found to be a person of excellent character and unquestioned loyalty to the United States,” it also said, “you were entrusted with information which should not, under any circumstance, be revealed to unauthorized persons.” Information she was privy to “should not now, or at any future time, be revealed.”