Next, Trending Asia. It seems assembly line jobs are not the only ones robots may take over. In Australia, drones are now serving as lifeguards. And they have just accomplished their first life-saving mission. This week, two teenage swimmers were caught in a rip current off a beach north of Sydney. A lifesaver drone was quickly sent to the location. It deployed a life raft, which the pair used to get back to safety. Local officials called the incident a "world first", saying the drone could reach the location significantly quicker.