World food commodity prices edged higher for the second straight month in April. The Food and Agriculture Organization (FAO) of the United Nations on Friday reported that its food price index - which tracks monthly changes in the international prices of a set of globally traded food commodities - averaged 119.1 points in April, up 0.3% from the revised March level, although still nearly 10% below its year-earlier level. The advance in the March food price index was the first increase i