...oh and remember scarlett joking about "noughts and crosses" - upon harwich beach - drawing a diagram in the sand - circa 1980, during that MI5 russian course - dazzlenation?...and well, i think that i've got a full row, now...let's put it that way and yes, john scarlett had been the MOD 'leak', hadn't he?...not that he had known it, at the time because it was dearlove who had put together the connection, along with john baker etc etc...with rimington in the wings....see previous notes upon 'all of that'....go figure:

How to read an audiogram (healthyhearing.com)