The photos look like a scene out of science fiction: Robot dogs patrolling the U.S.-Mexico border, climbing over harsh terrain to search for threats and contraband. But these images are real.

Headless robots resembling dogs are being tested to patrol the U.S.-Mexico border. Advocates warn they could infringe civil liberties if unchecked.

Robot dogs could potentially patrol the US-Mexico border, capturing evidence in remote areas. The CEO of their manufacturer, Ghost Robotics, said they would not "take over anything." ...

Photos of robot dogs patrolling the US-Mexico border look like a scene from science fiction. But these images are real. The Department of Homeland Security is testing the technology.

Boston scientists create "robots" that are capable of reproduction 02:35. A robot modeled after man's best friend may one day help patrol the U.S. southern border.

The photos look like a scene out of science fiction: Robot dogs patrolling the U.S.-Mexico border, climbing over harsh terrain to search for threats and contraband. But these images are real.

Headless robots resembling dogs are being tested to patrol the U.S.-Mexico border. Advocates warn they could infringe civil liberties if unchecked.

They’re four-legged, and weigh 100 pounds. But instead of a muzzle and fur, these have bolts, gadgets and cameras, and will be deployed on the Southwest border to help U.S. Customs and Border… ...

They’re four-legged, and weigh 100 pounds. But instead of a muzzle and fur, these have bolts, gadgets and cameras, and will be deployed on the Southwest border to help U.S. Customs and Border… ...

But instead of a muzzle and fur, these have bolts, gadgets and cameras, and will be deployed on the Southwest border to help U.S. Customs and Border Protection officials. They're four-legged, and ...