In this Monday, March 25, 2013 photo, Border Patrol agent Richard Gordon, a 23-year veteran of the agency, points to a route used by illegal immigrants that runs through rugged mountainous terrain in

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In this Monday, March 25, 2013 photo, Border Patrol agent Richard Gordon, a 23-year veteran of the agency, points to a route used by illegal immigrants that runs through rugged mountainous terrain in the Boulevard area east of San Diego, in Boulevard, Calif. For the past 16 years, Gordon has been one of the top "sign-cutters" or trackers in the Border Patrol. (AP Photo/Lenny Ignelzi) less 

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Associated Press
Mon, Apr 22, 2013 3:37 PM EDT