1. Seaweed

    Alastair Denniston by Joel Greenberg

    This is much more than a biography of Alexander ('Alastair') Guthrie Davidson ('AGD'), 1881-1961, wheelhorse of the British Signal Intelligence (SIGINT) effort at the start of Hitler's War. It is also the story of SIGINT itself from 1914 onwards. It starts with the WW1 story of Room 40 under...
  2. Seaweed

    P/M940872 Chronicle of a Cold War Eavesdropper by John Bishop

    John Bishop was one of the few hundred young men specially selected post-war by the Royal Navy to do their National Service as Coders (Special), a group trained as Russian linguists and employed in northern Germany to listen to Soviet radio circuits. His reminiscences here take the form of a...