companies to build toll roads. >> they built this road to paris. >> it will take ten minutes that used to take 45 minutes. >> private operators have an incentive to keep cars moving. so they clear accidents quickly and find them quickly thanks to 350 cameras they installed inside the tunnel. >> any incident is detected in less than ten seconds. >> they rush to tow it away. traffic keeps moving. >> john: government could do that? >> government could. it was the private sector, we bet people would be willing to pay for having that tunnel and turn a 40 minutes into a ten-minute trip. it was a huge success. >> john: this is another example from your state. >> in california, instead of building a brand-new road, a private company added two lanes in the middle of highway 91. drivers can use them or not, but if you pay you get to go this