My latest excuse to neglect blogging

I am wearing my long-unused amateur cryptanalyst hat and trying to solve this. I have all but three pairs solved, and the connection between the pairs. I have left to go - the remaining six individuals and their connections, the overall connection between the two lists (apart from the obvious one) and of course, and I expect if anything will stop me it will be this, the hidden quotation. Still, I have only been working on it for two days, so that's pretty good.
Update, 22:30 - I have cracked it and sent my solution to GCHQ. Wonder what the prize is?