Related Clues:

• CIA's precursor
• Agency that led to the CIA
• Forerunner of the CIA
• W.W. II spy grp.
• Gives a thumbs-up
• CIA predecessor
• Intelligence org.
• Old spy grp.
• CIA's forerunner
• Hush-hush W.W. II agcy.
• Org. in old spy novels
• Wild Bill Donovan’s org.
• W.W. II spy org.
• Secret W.W. II agcy.
• WWII intelligence agency