Sarah Vowell, NPR commentator and essayist, discusses her latest book, “Unfamiliar Fishes,” which tells the story of Hawaii in the 19th Century, from the landing of the missionaries to its annexation by the United States, and its parallels to today. Copies of the book will be offered as premiums for subscriptions during the program. An extended 38-minute version of the interview can be found at www.bookwaves.com