I remember the Zircon affair quite vividly. At the time I was a 20 year old student union activist, CND member (still a member) and involved in the Scottish independence movement (SNP member when it was unfashionable).

A couple of days after BBC Scotland was raided by Special Branch a bunch of us attended a viewing of the "banned" Secret Society "Zircon" programme in Edinburgh in the City Chambers (I think). Duncan Campbell was present and gave a short introduction. It was a positively electrifying event. I managed to get hold of a copy of the episode for distribution and viewing at my college. It was handed to me in a jiffy bag, the VHS video cassette was labelled "Mickey Mouse", I think I have it in a box somewhere.