FILE - In this June 19, 2008 file photo, U.S. Border Patrol agent Santos Flores walks in front of a section of old border fence, left, where it meets a five-mile section of new border f

 

              FILE - In this June 19, 2008 file photo, U.S. Border Patrol agent Santos Flores walks in front of a section of old border fence, left, where it meets a five-mile section of new border f
FILE - In this June 19, 2008 file photo, U.S. Border Patrol agent Santos Flores walks in front of a section of old border fence, left, where it meets a five-mile section of new border fence at the border in Nogales, Ariz. New fencing, more agents and a state crackdown have help drive down the number of illegal immigrants apprehended, but the amount of drugs seized in Arizona has soared at the same time. (AP Photo/Ross D. Franklin, File)