| Answer | Crossword Clue |
|---|---|
| OHARE | Busy U.S. airport |
| NYSE | Busy U.S. market |
| SAN | .. Ysidro, busy U.S.-Mexico border site |
| LAX | Large U.S. airport |
| FAA | U.S. airport regulator |
| LAX | Third-busiest U.S. airport |
| OHARE | Second-busiest U.S. airport |
| ARAB | Subject of U.S. airport profiling |
| LAX | Second-busiest airport in the U.S. |
| NEWARK | Site of first big U.S. airport |
| ATLANTA | U.S. city with the world's busiest airport |
| NEWARK | Site of first great airport in U.S. |
| NEWARK | Site of U.S.A.'s first big airport |
