It is 'unofficial' only in that it contradicts the bizarrely inaccurate 'official' story that nuclear people retailed for popular consumption. Going Critical is based on all the relevant official records - Hansard, annual reports, Select Committee hearings - but the story it tells is an extraordinary true black comedy. Yet more extraordinary is that the black comedy did not end in 1985, when Going Critical appeared. It continues, in much the same way, to this day.