International prices of key food staples dropped in the first five months of this year, driven largely by plummeting prices of cereals and sugar, according to a new United Nations Food and Agriculture Organization (FAO) report. The FAO Food Price Index the average of commodity prices, including meat and dairy -- averaged 164 points in May, down from 174 in January and substantially less than its peak of 214 reached in the spring of 2008. Sugar prices have plunged by half from their peak earlier this year due to possible significant production increases. But the Food Outlook report said that...