Season 12 of Diners, Drive-Ins and Dives provides a cross-country feast as Guy Fieri finds smoky barbecue joints, Southern kitchens, neighborhood sandwich stores, Latin street vendors, international home cooking and legendary breakfast areas. #FoodNetwork #DDD Watch #DDD, Fridays at 9|8c! Register For Food Network ▶ Guy Fieri takes a cross-country road trip to visit a few of America's timeless "greasy spoon" restaurants– diners, drive-ins and dives– that have actually been doing it right for years. Capture a…