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Subject (Region)
- United States2,131
- Washington (D.C.)29
- California26
- Florida18
- Mexican-American Border Region18
- Mexico, Gulf of13
- Afghanistan12
- Gulf States12
- Puerto Rico11
- Virginia10
- Washington Metropolitan Area10
- European Union countries9
- New York (State)9
- Chesapeake Bay (Md. and Va.)8
- Colorado8
- Louisiana8
- Texas8
- Alaska7
- Great Britain7
- Iraq7