Its most audacious investigation of the intelligence community was perhaps an extended edition in July 1984 titled "The Spy Who Never Was", the confessions of a former MI5 officer, Peter Wright. "Spycatcher", Wright's subsequent account of the period when he and colleagues had, as he put it, "bugged and burgled our way across London", revealed what had in effect been a planned coup against the then Labour government of Harold Wilson. Wright appeared to have been in charge of the technical side of things. 'The Wilson Plot', as it became known, was corroborated to varying degrees both before and after the film's transmission in various other books by journalists and in volumes of memoirs by others involved in the conspiracy. Wright's book was the most explosive of them all. Wright, embittered by a still unresolved pension dispute, fled to Australia where the book was written and finally published – to the fury of Mrs Thatcher – with the assistance of the original programme's chief researcher, Paul Greengrass. Publication in Britain was initially banned outright by the government of Margaret Thatcher.