Keeping an eye on billionaires going to space: NASA Administrator

NASA Administrator Bill Nelson told Fox Business that he's "keeping an eye" on billionaires like Jeff Bezos, Elon Musk and Richard Branson going to space. "They're going to have to meet the same rigorous physical and psychological examination for any other professional astronaut," Nelson said. "We want the crew...on space station to be safe when they have visitors," he added.