The U.S. Treasury Department froze the assets of 18 people linked to a Mexican drug lord who has been in prison for nearly 30 years.

Hot and dry conditions have also sparked significant blazes throughout New Mexico. The fastest growing scorcher is the Silver Fire, which is consuming the southeastern edge of the Gila Wilderness.

The growth rate of multiracial Americans is far outpacing the growth of the U.S. population as a whole.

There are calls for a re-evaluation of the U.S. Border Patrol’s use of force. Investigations into these cases are hidden from public view and can drag on for years.

An electronic billboard went up on a busy stretch of Phoenix highway Tuesday. It criticizes the U.S. Senate immigration bill, and Arizona's junior senator for helping to draft it.

In dozens of interviews with caseworkers, lawyers and family court judges, journalist Seth Wessler said he perceived a sort of bias against placing children in Mexico.

Nearly one in four immigrants deported from the United States between July 2010 and September 2012 has a child who is a U.S. citizen, according to the online journal Colorlines. That's more than 200,000 people.

Federal investigators are reopening the case of a day care fire that killed 49 children four years ago in the Mexican state of Sonora.

SAN DIEGO — Immigrant rights activists want U.S. Border Patrol agents to wear lapel cameras to monitor their interactions with people they encounter while on patrol.

FLAGSTAFF, Ariz. — About 650 Americans die each year of heat exposure, according to a new report from the Centers for Disease Control and Prevention. The CDC said that number has remained steady over the last decade.