| Answer | Crossword Clue |
|---|---|
| NSA | Hush-hush govt. gp. |
| NSA | Govt. hush-hush gp. |
| NSA | Hush-hush govt. group |
| NSA | Hush-hush govt. org. |
| CIA | Govt. hush-hush group |
| NSA | Hush-hush govt. grp. |
| NSA | Govt. hush-hush group |
| NSA | Govt. hush-hush org. |
| NSA | Hush-hush part of U.S. govt. |
| CIA | Hush-hush gp. |
| NSA | Hush-hush gp. |
| NSC | Hush-hush defense gp. |
| OSS | Hush-hush WWII gp. |
| CIA | Hush-hush fed. gp. |
| OSS | WWII hush-hush gp. |
| NSA | Fed. hush-hush gp. |
| NSA | DOD hush-hush gp. |
| OSS | Hush-hush WW II gp. |
| CIA | Hush-hush gp. based in Langley, Va. |
