The newest battleground for the fast-food giants is breakfast. McDonald's, Burger King, and Starbucks have turned up the griddle on joints like Dunkin Donuts, forcing them to fight back. Said Dunkin Donuts to the breakfast bullies, "Suck on our Sausage Pancake Bites!" Last week, for a limited time only, Dunkin Donuts launched its Sausage Pancake Bites as a market test item. Billed as "a poppable breakfast snack that makes it easy for anyone to savor the delicious pairing of pancakes and sausages any time of day," Sausage Pancake Bites are bite-sized sausage links wrapped in a maple flavored pancake, sold...