The Agriculture Department plans to limit potato consumption among schoolchildren to two servings a week. But politicians and farmers in potato-growing states such as Maine say the spud is being unfairly targeted. As it turns out, schoolchildren have strong opinions about potatoes too. LYNN NEARY, host: The U.S. Department of Agriculture is sending its own message to kids. It wants to limit the amount of potatoes in school lunches and mandate no more than two servings a week. That’s about [...]