| in the conduct of national security | 4 | purpose |
| in part | 4 | degree |
| often | 3 | degree |
| secrecy → be → necessary | 35 |
| secrecy → be → appropriate | 6 |
| secrecy → be → required | 6 |
| secrecy → be → prerequisite | 4 |
| negative | neutral | positive |
| 0.277 | 0.644 | 0.079 |
| Raw frequency | 51 |
| Normalized frequency | 0.936 |
| Modifier score | 0.520 |
| Perplexity | 32.236 |