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.
원문출처 : https://www.cnn.com/2022/02/19/us/robot-dogs-us-mexico-border-patrol-cec/index.html
원문출처 : https://www.cnn.com/2022/02/19/us/robot-dogs-us-mexico-border-patrol-cec/index.html