Controversy of the Surprise Attack, 1941–1946 (Texas A&M University Press, 1977). Central focus is on the political motivations and partisanship during the war years which delayed public disclosure of the details surrounding this attack, and forced the decision not to court martial Kimmel or Short. Ladislas Farago, The Broken Seal: The Story of Operation Magic and the Pearl Harbor Disaster (Random House, 1967). Bantam paperback edition Postscript contains an account of Lurline'''s "interception" and the "disappearing logbook". Edwin T. Layton (with Pineau and Costello), And I Was There – Pearl Harbor and Midway – Breaking the Secrets (William Morrow and Company, 1985) Layton was Kimmel's Intelligence Officer. Robert Stinnett, Day Of Deceit: The Truth About FDR and Pearl Harbor (Free Press, 1999) A study of the Freedom of Information Act documents that led Congress to direct the military to clear Kimmel and Short's records. Full of questionable claims, unsupported allegations, and errors of fact and reasoning. L. S. Howeth, USN (Retired), History of Communications – Electronics in the United States Navy, GPO (Government Printing Office), Washington, DC, 1963. A very good source of material, especially on equipment and capabilities. Chapter XV comments on identifying transmitters by their unique "tone" and a Navy radio operator's court-martial, resulting in conviction. Frederick D. Parker, Pearl Harbor Revisited – United States Navy Communications Intelligence 1924–1941 from the Center for Cryptologic History, National Security Agency, 1944 – now available online here. Of note are the SRNs given, and there to especially highlight are, for example: (a) the clear distinction the IJN made between shortware versus longwave radio transmissions (see SRN-115397 on page 59), (b) missing paragraphs: "2. Other forces at the discretion of their respective commanders." and "3. Supply ships, repair ships, hospital ships, etc., will report directly to parties concerned." (see SRN-116866 on page 62). Mark Emerson Willey, Pearl Harbor – Mother of All Conspiracies (self-published in 1999, now available in paperback). Has a detailed timeline of events leading to Pearl Harbor, discusses codebreaking and radio silence, with Appendix A highlighting the many contextural differences as evidenced in SRH-406 – Pre-Pearl Harbor Japanese Naval Dispatches. Known for having some of the more outlandish claims. Chapter Two "Japanese Navy Codes" provides an excellent tutorial on "hatted" codes, especially JN25. [SRH-406 had several titles, an original non-censored version exits in private hands. A number of "GZ" comments have been removed from today's public version. FOIA requests