A hidden path to America's dinner tables begins here, at an unlikely source – a former Southern slave plantation that is now the country's largest maximum-security prison. In a sweeping two-year investigation, The Associated Press found goods linked to US prisoners wind up in the supply chains of a dizzying array of products from Frosted Flakes cereal and Ball Park hot dogs to Gold Medal flour and Coca-Cola. They are on the shelves of most supermarkets, including Kroger, Target, Aldi, and Whole Foods.