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Subject
- Noncitizens74
- Undocumented immigrants34
- Emigration and immigration32
- Government policy25
- Border security15
- Immigration enforcement15
- Immigrants13
- Emigration and immigration law12
- National security11
- Illegal immigration9
- Illegal aliens8
- Social conditions8
- Economic aspects6
- Legal status, laws, etc6
- Social aspects6
- Citizenship5
- Foreign workers5
- Prevention5
- United States. Department of Homeland Security5
- Visas5