Video by U.S. Customs and Border Protection Office of Public Affairs - Visual Communications Division

The Obama administration has asked a court to block parts of South Carolina's new immigration law, saying those provisions are unconstitutional and interfere with federal immigration authority.

Video by U.S. Immigration and Customs Enforcement

Blackhawk helicopters modified by the U.S. Army for the Mexican military were used in an operation in Colombia, Nuevo Leon, Mexico that led to the arrest of alleged members of Los Zetas.

Elements of the Mexican Secretary of the Navy (Semar) arrested 19 alleged members of Los Zetas, a Mexican drug cartel, according to a Sept. 20 article by Ruben Mosso in the Milenio, a Mexican newspaper.

The United States and Canada share the longest unfortified border in the world. In the border town of Blaine, Washington, a shallow ditch and some warning signs are all that separate U.S. territory from Canada. But that could be about to change.

The Obama administration has asked an appeals court to halt the strict, new immigration law in Alabama.

The Justice Department says the law is driving immigrants from Alabama, and invites discrimination against foreign-born people who are legally in the state.

The motion was filed Friday in the 11th U.S. Circuit Court of Appeals.

Video by Immigration and Customs Enforcement

Video by Immigration and Customs Enforcement

Video by Immigration and Customs Enforcement