A new survey indicates that nearly one in five US households could not afford to buy enough food at least once during the past year. An anti-hunger group said the poll found 18.2 percent of households reported "food hardship" -- lacking money to buy enough food -- in 2009. The figure reflects a higher percentage than the government's "food insecurity" rating of 14.6 percent of households, or 49 million people, in 2008. "There are no hunger-free areas of America," Jim Weill of the Food Research and Action Center was quoted as saying by Reuters. He added that he hoped President...