Professor Stephen Baenziger holds stalk of wheat at greenhouse of wheat breeding program at Nebraska university in Lincoln

Professor Stephen Baenziger holds a stalk of wheat at the greenhouse of the wheat breeding program at the Nebraska university in Lincoln, Nebraska, May 5, 2008. The new U.N. food envoy sought a special meeting of the U.N. Human Rights Council this month to address a global food crisis he said was a “massive violation” of human rights. Protests, strikes and riots have erupted in developing countries around the world after dramatic rises in the prices of wheat, rice, corn, oils and other essential foods that have made it difficult for poor people to make ends meet. REUTERS/Carlos Barria (UNITED STATES) – RTR2084K