FILE - In this July 6, 2009 file photo, a U.S. Border Patrol agent peers through a section of fence in San Diego that is part of the "Smuggler's Gulch" area along the U.S.-Mexico border

 

              FILE - In this July 6, 2009 file photo, a U.S. Border Patrol agent peers through a section of fence in San Diego that is part of the "Smuggler
FILE - In this July 6, 2009 file photo, a U.S. Border Patrol agent peers through a section of fence in San Diego that is part of the "Smuggler's Gulch" area along the U.S.-Mexico border. The fence, completed at a cost of $16 million, has helped to seal San Diego's land borders. (AP Photo/Denis Poroy)