Former U.S. Attorney Alan Bersin is the new "border czar."
Homeland Security Secretary Janet Napolitano introduced Bersin Wednesday during a news conference at a bridge that links El Paso and Ciudad Juarez, Mexico.
The former federal prosecutor will oversee Homeland Security's efforts to end drug cartel violence along the U.S.-Mexico border and reduce the flow of illegal immigrants sneaking across the border from Mexico into the United States.
Bersin is expected to work with international officials, along with his counterparts in the U.S. and border states.
Copyright The Associated Press