It's pink, pliable, and so uniformly unperturbed it seems as though it must have come from a single, endless sausage. In lunchboxes, it's folded into sandwiches with yellow mustard. In diners, bologna ...

Bologna on cutting board with salt and pepper grinders, tomatoes, garlic, and parsley in the background - Andreyst/Getty Images Bologna is one of America's most recognizable lunch meats — but what ...