We're loving Tom Vanderbilt's Traffic: Why we drive the way we drive. Vanderbilt "examines the perceptual limits and cognitive underpinnings that make us worse drivers than we think we are. He demonstrates why plans to protect pedestrians from cars often lead to more accidents. He shows how roundabouts, which can feel dangerous and chaotic, actually make roads safer—and reduce traffic in the bargain. He uncovers who is more likely to honk at whom, and why." Fascinating stuff, right? Here he speaks about the counterintuitive science of traffic.