Dunkin' taking doughnut bacon sandwich national

Even as fast-food chains tout their healthy offerings, they're also coming up with fatty new treats to keep customers interested. Case in point: Dunkin' Donuts is adding a doughnut breakfast sandwich to its national menu this week. The sandwich, which comes with fried eggs and bacon between a split glazed doughnut, will become a part of the permanent menu starting June 7, which the chain...