walter : in good ol' canada, pornographic material was regularly intercepted and confiscated by postal inspectors , certainly during the 50's and 60's - don't know when it stopped .
we also had (have ?) a film censor board, whose job it was to screen 'sexually explicit' films and , if necessary, 'cut them' - some were banned outright.
there was a joke going around, wondering how one could 'qualify' for such a job, and what was being done to prevent the censors from being 'corrupted' .
oh, what a wonderful world we are living in - it's o.k to kill but 'verboten' to watch 'pornographic' material (not that i have any need to - just wanted to make the point clear !!!). hbg