Border security - United States.

Beyond walls : = re-inventing the Canada-United States borderlands / by: (Language materials, printed)

Nation, immigration, and environmental security by: (Electronic resources)

Scorpions for breakfast : = my fight against special interests, liberal media, and cynical politicos to secure America's border / by: (Language materials, printed)

Border rhetorics = citizenship and identity on the US-Mexico frontier/ by: (Electronic resources)

Empire of borders : = the expansion of the US border around the world / by: (Language materials, printed)

Immigration, environment, and security on the U.S.-Mexico border by: (Electronic resources)

Canada- Relations- United States.

United States- Emigration and immigration

International Security Studies.

Borderlands- Canada.

Environmental policy- United States.

Rhetoric- Political aspects- United States.

United States.

Citizenship.

Latin American Politics.

Cabeza Prieta National Wildlife Refuge (Ariz.)

Borderlands- United States.

National security- United States.

Terrorism- Prevention- United States.

Mexican-American Border Region- Environmental conditions.

Border security- United States.

Mexican-American Border Region- Emigration and immigration

Border security- Social aspects- United States.

Border security- Canada.

September 11 Terrorist Attacks, 2001- Influence.

United States- Foreign relations- Developing countries.

Developing countries- Foreign relations- United States.

Governance and Government.

United States- Relations- Canada.

POLITICAL SCIENCE / Government / State & Provincial

National security- Canada.

Terrorism- Prevention- Canada.

Illegal aliens- United States.

Citizenship- Political aspects- United States.

Emigration and immigration- Environmental aspects.