The U.S. government has halted flights home for Mexicans caught entering the country illegally in the deadly summer heat of Arizona's deserts, a money-saving move that ends a seven-year experiment that cost taxpayers nearly $100 million.

Mexican federal police announced Friday that they have arrested a suspect in the killing of U.S. Border Patrol agent Brian Terry, the slaying at the center of the scandal over the botched U.S. gun-smuggling probe known as Operation Fast and Furious.

A woman has pleaded guilty to aiding a gun smuggling that was being monitored as part of the government's botched investigation known as Operation Fast and Furious.

A man charged with participating in a gun smuggling ring is expected to change his plea in the federal government's botched investigation known as Operation Fast and Furious.

Gov. Jan Brewer is set to deliver a keynote speech Tuesday at a major border security expo being held in downtown Phoenix.

The anemic fundraising for Sen. Steve Smith’s build-your-own-border-fence campaign is getting some help from a professional public relations firm.

Arizonans are clearly worried about the economy and education, but their top priority is immigration, according to a poll released today by Arizona State University’s Morrison Institute of Public Policy.

When asked what Arizona’s biggest problem is that lawmakers and the governor should address, 24 percent of respondents answered immigration.

U.S. Border Patrol agents say they have discovered a partially completed smuggling tunnel west of the border crossing in Nogales.

U.S. Border Patrol agents and Mexican law enforcement discovered an unfinished smuggling tunnel this week in the Arizona border city of Nogales.

The chief of the U.S. Border Patrol says that his agency must understand the capabilities and vulnerabilities of violent smuggling organizations to have any hope of dismantling them.