When WWI began, the United States military had no code-breaking agency to decode enemy messages and encode their own. Enter Elizebeth and William Friedman. | American Experience | PBS

It may sound incredible, but it's true. For the first eight months of WWI, Elizebeth and William Friedman with their team broke all messages for every part of the US military and Department of Justice. THE CODEBREAKER is available to stream → pbs.org/wgbh/americanexperience/films/codebreaker | American Experience | PBS