In this Dec. 9, 2010 photo, a U.S. Customs and Border Protection agent checks a truck heading southbound from the U.S. to Mexico in Brownsville, Texas. Customs agents are trying to stem smuggling of ... more 
In this Dec. 9, 2010 photo, a U.S. Customs and Border Protection agent checks a truck heading southbound from the U.S. to Mexico in Brownsville, Texas. Customs agents are trying to stem smuggling of guns and cash from the U.S. to Mexico. less 
1 / 1
Associated Press | Photo By LM Otero
Sat, Mar 5, 2011 3:37 PM EST