| Answer | Crossword Clue |
|---|---|
| NSA | U.S. code and cipher grp. |
| NSA | U.S. code breakers |
| NAN | Code word for "N" in the old U.S. Phonetic Alphabet |
| GPO | U.S. publications grp. |
| SAC | U.S. defense grp. |
| ABT | U.S. dance grp. |
| DEA | U.S. anti-trafficking grp. |
| FAA | U.S. air-safety grp. |
| INS | Grp. protecting U.S. borders |
| ABT | Noted U.S. dance grp. |
| NORAD | U.S.-Canada defense grp. |
| NORAD | U.S.-Canada defense grp. |
| NATO | Grp. that includes the U.S. |
| AHL | U.S.-Canadian sporting grp. since 1936 |
| NSC | Grp. that includes the U.S. president |
| NATO | Defense grp. that includes the U.S. |
| OPEC | International grp. with a 1970s U.S. embargo |
