The return to New York in 2002 of Rodgers and Hammerstein's Flower Drum Song--with a totally new book by playwright David Henry Hwang--was considered the most revolutionary chapter in the history of Broadway revivals. Why? The musical, a clear hit when it was originally produced in 1958, had later acquired a debatable reputation for quaint, racially offensive Asian stereotypes. Yet Hwang's controversial rewrite--driven at least in part...