| Answer | Crossword Clue |
|---|---|
| NAVAJO | Basis for a WWII code |
| HIPPOCRATICOATH | Basis for an ethical code |
| ROMANLAW | Civil code basis |
| ENIGMA | WWII code machine |
| ALAN | WWII code breaker Turing |
| TALKERS | Navajo code ... (WWII encoders-decoders) |
| DDE | His WWII code name was Duckpin |
