“Now,” said President Obama in his most soothing voice, “whenever gas prices shoot up, like clockwork, you see politicians racing to the cameras, waving three-point plans for two dollar gas. You see people trying to grab headlines or score a few points. The truth is, there’s no silver bullet that can bring down gas prices right away.” Funny the president should choose those words. As he was delivering his weekly radio address, we were just thinking about gasoline and wondering how its value has been faring in specie. One can’t tell that from its price, though, because we are dealing...