Subject
- Drug traffic217
- Government policy216
- Civil rights213
- Race relations207
- Intellectual life188
- Mexican-American border region176
- Hispanic Americans162
- Mexican American families147
- Undocumented immigrants147
- Boundaries134
- Drug control128
- Employment124
- Relations112
- Prevention110
- Border patrols109
- Indians of North America109
- Violence97
- In literature91
- Political aspects91
- Women89