Why is the traffic so bad? And why is so hard to build new transportation infrastructure? Robert Poole is the co-founder and director of transportation policy at Reason Foundation, and the author of Rethinking America’s Highways. We talked about congestion, variable pricing, light rail, tunnel boring machines, and why they don’t seem to work in our cities — or rather, why we won’t let them work — and the infrastructure policy our politicians craft and pass that seems to be crippling us.