Yesterday, the President of the United States did something unusual. In an op-ed published in the Pittsburgh Post-Gazette, Barack Obama explicitly made the case for putting people inside of robots and moving them around. That is, he argued in favor of driverless cars, which is a less horrific statement of the same thing. Self-driving cars, or autonomous vehicles, are in development from Google, Apple, and Uber, as well as others, and they bring the promise of perfect, more efficient travel, with cars communicating automatically to each other and deadly human error a thing of the past. It is an exciting potential future, but if it's to come to fruition, it needs rules.