Representatives at the Food and Agriculture Organization vote this weekend to give the largest U.N. agency its first new chief in almost two decades _ an election that comes at a time of critically high food prices and malnutrition across the world, according to AP. Six candidates from as many nations are vying for the top job at the Rome-based agency, but the race is likely to come down to a battle between two men: a Brazilian who had a leading role in his country's campaign against poverty and hunger and a Spaniard who has served as his nation's top diplomat. The new chief will succeed Jacques Diouf of Senegal, who was first elected in 1993, a long tenure that sparked reforms limiting the mandates of the secretary-general.