In this Tuesday, Nov. 15, 2016, photo, a U.S. Customs and Border Patrol passes a Remote Surveillance Camera Systems tower stationed along a section of border in Brownsville, Texas. Since tower-mounted Border Patrol video surveillance cameras began going up in 1999 in the Brownsville area, illegal cross-border "traffic dried up by 85-90 percent," said Johnny Meadors, the sector's assistant chief for technology. (AP Photo/Eric Gay)
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