On Wednesday’s show we talked about Tesla’s full self-driving mode, which it is about to make available to more drivers. And yes, the name implies that the cars will drive themselves, but the technology isn’t there yet. A human will still have to be in control. But while the technology is advancing, there is no federal regulation of self-driving cars. And that’s created a patchwork of different rules across the country. Marketplace’s Marielle Segarra speaks with Jason Levine, the executive director of the Center for Auto Safety.