Book excerpt: "Despite these successes, by 1950 Fletcher had become one of the most controversial figures in U.S. naval history and was portrayed as a timid bungler who failed to relieve Wake Island in December 1941 and who deliberately abandoned the Marines at Guadalcanal." "Drawing on many newly discovered documents, massive dispatch files, and personal papers that no historian has previously used, the author offers not only a fresh look at Fletcher's decisions and actions but also a careful analysis of the effect of radio intelligence on decision making in the carrier battles during the first nine months of the war in the Pacific."--BOOK JACKET.