Human smuggling Noncitizens 23 Emigration and immigration 21 Human trafficking 18 Illegal immigration 14 Social conditions 11 History 7 more ... Prevention 7 Prostitution 7 Social aspects 7 Immigrants 6 Slave trade 6 Border crossing 5 Transnational crime 5 Crimes against 4 International cooperation 4 Women 4 Central Americans 3 Children 3 Emigration and immigration law 3 Human rights 3 Law and legislation 3 Law enforcement 3 Organized crime 3 Smuggling 3 Violence against 3 Capitalism 2 Drug traffic 2 Economic aspects 2 Forced labor 2 less ...