... I thought all this was about on the same level with Harold Wilson's paranoid ramblings about MI5 plotting against him. i.e., simply not the case at all.Apparently Benn did't believe the allegations either when they were first published in The New Stateman, but he did after the MI5 officers came forward corroborating the story.
But you're saying this other thing actually had some basis in fact... could you let me know where I ought to be looking, where you obtained the info etc? Would love to know. It sounds scary and fascinating at the same time, just like all good coup plots