During World War II, the Office of Price Administration (OPA), Office of Strategic Services (OSS), Office of War Information (OWI), and War Shipping Administration (WSA) were all agencies created to help the United States in its war efforts. The OPA was responsible for controlling prices and rents, the OSS was a precursor to the CIA and was responsible for espionage and sabotage, the OWI was responsible for managing propaganda, and the WSA was responsible for managing the transportation of supplies.