| Answer | Crossword Clue |
|---|---|
| FILMS | Important U. S. industry. |
| STEEL | U.S. industry. |
| COAL | Key U. S. industry. |
| SPONGES | U. S. gulf-coast industry. |
| STEEL | A leading U. S. industry. |
| SLATER | Pioneer in U.S. cotton industry |
| HENS | Backbone of large U. S. agricultural industry. |
| DOLLAR | Important U. S. export. |
| AEC | Important U. S. board: Abbr. |
| PANAMA | Important U. S. security zone. |
| SITKA | Important U.S. naval base |
| ELECTIONDAY | Important event in the U. S. |
| GUAM | Important U. S. base in Pacific. |
| ADAMS | Important name in U.S. history |
| FINAL | Most important U.S. Open match |
