Robots that resemble animals such as dogs or snakes patrolling industrial facilities will soon be a familiar sight as manufacturers look for high-tech solutions to prevent human casualties or injuries which could hold them legally responsible. Hyundai Steel Co. is testing a four-legged walking robot to help prevent damage to humans in case of accidents or disasters. The robot, called Spot, can check whether oxygen gas valves are open or shut and inspect areas that pose safety risks. Therefore, i