Declaration will make it easier to get food to those in need , president says . Comment: Sisters Vidalia , left , and Maribel Agustin , who suffer from malnutrition , sit at a shelter in Guatemala in August . Guatemala has highest rate of malnutrition in Latin America , U.N. says . Colom blames food problems on drought , global warming , economic crisis .
Declaration will make it easier to get food to those in need , president says . Comment: Guatemala has highest rate of malnutrition in Latin America , U.N. says . Colom blames food problems on drought , global warming , economic crisis .