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

“Robot dogs” -- four-legged headless machines mounted with cameras and sensors -- may one day be prowling along the Southwest border, spotting undocumented migrants or sniffing out drug smuggler ...

The DHS enforces borders, which include the ports in major cities, as well as “immigration” areas (which could be anywhere). Thus, the agency’s robot dogs could be wandering the streets of ...

The Homeland Security Department is looking at deploying robot dogs to help patrol the southern U.S. border ... Inaccuracies and biases in their design have real-life consequences.

SAN ANTONIO, Texas — Robot dogs could soon be patrolling the southern border. The mechanical quadrupeds are just one of the technologies showcased this week at the country’s largest border ...