That was the view of artificial intelligence experts during a panel discussion on the topic Tuesday at the Heidelberg Laureate Forum in Germany. "We've got to take responsibility for the technology we create," said Noel Sharkey, an emeritus professor of AI and robotics at the University of Sheffield as well as chair of the International Committee for Robot Arms Control and cofounder of the Foundation for Responsible Robotics. In 2014, 4.7 million service robots were sold for personal domestic use, and 38 million are expected by 2018, he said. "The bigger issue is that humans and AI will outperform humans working alone--that's the one we need to pay attention to," said Jim Hendler, professor of computer, web and cognitive sciences at Rensselaer Polytechnic Institute.