Related Clues:

• 1940's spy grp.
• Fort Meade org.
• Top-secret grp.
• 1940s spy org.
• 1942 FDR creation
• Org. for U.S. cryptologists
• Cipher org.
• Hush-hush gp.
• CIA relative
• Secret org.
• Org. with its HQ at Fort Meade, Md.
• Wire-tapping org.
• CIA of WWII
• Cryptology org.
• US intelligence org.