Asian Cuisine; The Great American Sandwich; Gluten-Free Bakery

Spotlight on Asian Cuisine:  Jonathan Gold samples the chicken-ginseng soup at Keumsan Samgyetang in Koreatown; producer Thea Chaloner travels with a sushi chef in search of the freshest fish; Sasha Issenberg reveals the big business of sushi; and Saveur magazine’s James Oseland discovers the little-known foods of Southern Thailand. Jane and Michael Stern find a slice of Americana in the form of sandwiches; Jimmy Shaw plunges into summer with a cool glass of agua fresca;  Eugenie Mason provides gluten-free treats in her bakery; and Laura Avery checks-out artisan cheeses in the Market Report.