The Department of Transportation wants to make cars talk

Human drivers are imperfect pilots, placed in command of a couple thousand pounds of fast-moving metal. We're just not equipped for the task: The eyes that evolved pointing forward (to better navigate our ancestral home in the trees) mean a smaller field of vision. Even with well-positioned mirrors, a human driving a car in three-dimensional space is bound to have blindspots. What if cars could sense where they were, and then communicate that information to other cars? Suddenly, a dense road of imperfectly piloted vehicles would become a smart, safe network, with the cars themselves constantly pinpointing one another in space and time.