...and I had thought that a 'thin back' search would give me a military command explanation or something like that...let's try again....hmmm...Caitlyn is there something that I should know about those 'green hooks'....got it....blackmail.....brian had just been blackmailed by MI6...who had found out about etc etc...the skulduggery of it all, eh?...and I suppose that one has to say 'he who is without sin'  but there again - that would exclude everybody and so perhaps it is best to talk about....'sinned more than sinned against'....go figure: