| Answer | Crossword Clue |
|---|---|
| OAS | Alliance headquartered in D.C. |
| IMF | Org. headquartered in D.C. |
| OAS | Multinational group headquartered in D.C. |
| UPI | News agcy. headquartered in D.C. |
| OAS | Intl. group headquartered in D.C. |
| AMTRAK | Rail service headquartered in Washington, D.C. |
