Grist: Amid all the celebration over America`s plunging gas prices - down some 40 percent since June -- it`s easy to forget a very basic fact: In a global sense, U.S. fuel has been cheap for years. In late 2012, for instance, the United States ranked toward the bottom of a world list of gas prices, wedged between the likes of Tunisia and Chad on one side and Russia and Kazakhstan on the other. Most first-world countries paid at least double what America did then, just as they do today.
The situation...