Concrete-filled metal vehicle barriers west of Columbus, New Mexico have helped curb pickup-truck crossings of drugs and aliens from Mexico.
Concrete-filled metal vehicle barriers west of Columbus, New Mexico have helped curb pickup-truck crossings of drugs and aliens from Mexico. Kevin G. Hall / MCT
Concrete-filled metal vehicle barriers west of Columbus, New Mexico have helped curb pickup-truck crossings of drugs and aliens from Mexico. Kevin G. Hall / MCT

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October 19, 2007 7:00 AM

On the Mexican border, low-tech trumps high-tech

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