The founding fathers of American beer began their careers modestly; the man who created the future Pabst brewery could not afford a boiler, so instead he offered a lifetime supply of free beer to the ironmonger who built it for him in Milwaukee. Larry talks with Maureen Ogle, author of the new book, Ambitious Brew which traces the history of beer in America, from German inspired biergartens in the mid 1800s to prohibition to the microbrews of the present.