Food historian William Woys Weaver. Weaver is a leading expert on the culinary traditions and cooking techniques of the 18th and 19th centuries, and he often is often consulted by restoration organizations such as Old Sturbridge Village and Colonial Williamsburg. Weaver also tracks the emergence of regional American cuisines, often focusing on what the common workers, farmers, and slaves ate. Weaver's new book, "America Eats," examines American foods as a valid form of folk art. It also features traditional recipes adapted for the modern kitchen. The book is published in conjunction with a major exhibit running at New York's Museum of American Folk Art. (Interview by Sedge Thomson)