U.S. Border Patrol Tucson Sector Chief Manuel Padilla, right, talks with another agent during a tour in the Buenos Aires National Wildlife Refuge near Sasabe, Ariz., Wednesday, April 30, 2014. Padilla... more 
U.S. Border Patrol Tucson Sector Chief Manuel Padilla, right, talks with another agent during a tour in the Buenos Aires National Wildlife Refuge near Sasabe, Ariz., Wednesday, April 30, 2014. Padilla and other Border Patrol officials spent the day discussing the dangers for people trying to cross the border illegally from Mexico into the U.S., after they enter the remote desert terrain. (AP Photo/Brian Skoloff) less 
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Associated Press | Photo By Brian Skoloff
Wed, Apr 30, 2014 7:57 PM EDT