With gas prices at record highs and the economy in the toilet, the BBC asks a tough question: why are US teenagers driving less? I guess when your grasp of economics is left-handed answers to these sorts of questions really aren't all that obvious. Oh, and another startling find: everyone in America has stopped driving as much, but now that gas prices have fallen a bit we've started driving a little more. I'm so glad they're here to tell us these things!