Keep Her in the Dark About Military Secrets

During World War II, the United States government was extremely concerned about people "talking out of school." This is an example of a poster which warns a G.I. against talking to his wife or girlfriend.

As the Government Information Manual for the Motion Picture Industry Office of War Information cautioned:

Words are ammunition. Each word an American utters either helps or hurts the war effort. He must stop rumors. He must challenge the cynic and the appeaser. He must not speak recklessly. He must remember that the enemy is listening.