Photo Library
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Main Drainage Lead
Border Patrol agents on patrol in the main drainage system in Nogales, Arizona. The agents are looking for any signs of illegal activity including break-ins.
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Robot 7
Border Patrol agents pulled the robot back to the surface after its search mission was completed.
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Robot 6
The CBP robot investigates an underground pipe and reports it's data back to agents above ground.
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Robot 3
A Border Patrol agent prepares a robot to explore an underground drainage pipe for signs of illegal activity by smugglers.
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CBP Robot 2
CBP deploys robot to investigate pipes and passages too small or dangerous for the tunnel team to crawl through.