U.N.: Food prices at 20-year high

ST. LOUIS (AP) — Prices for major crops climbed Thursday as a U.N. agency said food costs are now at their highest point since the agency began tracking them 20 years ago. Global prices have surged 2.2 percent just in the past month, according to the U.N.’s Food and Agriculture Organization in Rome. The FAO’s index, which measures the price of staple food items and big commercial crops like corn and soybeans, reached its highest level since 1990.