Clue: Bygone nuclear agcy.

Answer: AEC

Length: 3

---

Similar Clues:

• Nuclear energy agcy. (AEC with 3 letters)
• Former nuclear power agcy. (AEC with 3 letters)
• 1946-'75 nuclear agcy. (AEC with 3 letters)
• Nuclear agcy. until 1975 (AEC with 3 letters)
• Nuclear agcy. till 1975 (AEC with 3 letters)
• Nuclear agcy. formed under Truman (AEC with 3 letters)
• Truman's nuclear agcy. (AEC with 3 letters)
• Nuclear agcy. (AEC with 3 letters)
• Former nuclear agcy. (AEC with 3 letters)
• Agcy. with an "Information Assurance" section on its website (NSA with 3 letters)