Was Tokyo Rose a charming radio host or a vicious propagandist who committed treason from the DJ booth? Historians still haven’t settled the matter. She was convicted in 1949 but received an official pardon on this day, Jan. 19, in 1977, when the case for treason appeared less clear-cut than it had in the bitter years after World War II. Iva Toguri d’Aquino was born in the U.S. to Japanese parents and, by all early accounts, she grew up as a devoted patriot. She earned a degree in zoology from UCLA in 1940 and had begun doing graduate work there...