We are witnessing the beginning of one of the great tragedies of history, says Lester Brown. The United States, in a misguided effort to reduce its oil insecurity by converting grain into fuel for cars, is generating global food insecurity on a scale never seen before, he warns. The world is facing the most severe food price inflation in history as grain and soybean prices climb to all-time highs. Wheat trading on the Chicago Board of Trade on December 17 breached the $10 per bushel level for the first time ever. In mid-January, corn was trading over $5 per bushel, close to its historic high. And on January 11, soybeans traded at $13.42 per bushel, the highest price ever recorded. All these prices are double those of a year or two ago.