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.

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." ...

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

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.

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… ...

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

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.

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 ...