Subject
Free trade
54
United States Foreign relations
39
Mexico Foreign relations
36
United States Foreign economic relations
34
Mexico Foreign economic relations
32
Drug control
21
Mexico Relations
17
United States Boundaries
17
Mexico Commerce
16
United States Commerce
16
Mexico Boundaries
15
Mexico Politics and government
15
United States Relations
15
Drug traffic
13
Mexico
13
United States
13
Mexico Emigration and immigration
12
Drug control International cooperation
11
Foreign trade and employment
11
Mexico Economic conditions
11
United States Emigration and immigration Government policy
11
Mexicans
10
Mexico History
10
United States Emigration and immigration
9
Double taxation
8
United States Commercial policy
8
Economic stabilization
7
Immigrants
7
Trucking Safety measures
7
Income tax Law and legislation
6
Mexico Commercial policy
6
Mexico Emigration and immigration Government policy
6
Economic assistance, American
5
Foreign trade regulation
5
Devaluation of currency
4
Emigration and immigration law
4
Environmental policy
4
Environmental protection Economic aspects
4
Exports
4
Human rights
4
Illegal immigration
4
Loans, American
4
Manpower policy
4
Mexican Americans
4
Mexican-American Border Region
4
Mexico Emigration and immigration History
4
Noncitizens
4
Tariff Law and legislation
4
Transportation, Automotive Safety regulations
4
Trucks Evaluation
4
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