South Korean scientists are working on a new-generation robot resembling a human which will be able to walk the walk as well as talk the talk, one of the team said Thursday. The first walking "android" will make its debut within two to three years, said So Byung-Rok, one of the team of researchers at the Korea Institute of Industrial Technology. Androids present particular technological challenges in cramming complicated modules, motors and actuators into a life-size body. The team has already developed two android prototypes designed to look like a Korean woman in her early 20s, which can hold hold...