This week on Flightless Bird, David Farrier sets out to understand why Americans guzzle down over 10 billion donuts every year. He sets off with his friends Andrew and Lauren to sample some Californian donuts, before meeting up with Emily Taing. Tang is behind Pink Box Stories (@pinkboxstories) on Instagram and educates David about the origins of the donut’s famous pink boxes, and the importance of America’s mom-and-pop donuts stores. David then sets his sights on the big East Coast chain - Dunkin’ - meeting with their president Scott Murphy, and one of their franchisees Sue Andrade.