Japan stands out for its long love affair with humanoid robots, a phenomenon that is creating what will likely be the world's first mass robot culture. While U.S. companies have produced robot vacuum cleaners and war machines, Japan has created warm and fuzzy life-like robot therapy pets. While the U.S. makes movies like "Robocop" and "The Terminator," Japan is responsible for the friendly Mighty Atom , Aibo and Asimo . While the U.S. sponsors robot-on-robot...