Elon Musk, CEO of Tesla and SpaceX, predicts that in ten years, all new cars in the U.S. will be electric vechicles. He spoke at the closing plenary session of the annual summer meeting of the National Governors Association where he discussed the impact of emerging technologies on energy and transportation, and warned about the future of artificial intelligence. The session began with remarks by outgoing NGA Chair Terry McAuliffe who introduced his successor, Gov. Brian Sandoval (R-NV).