Harvey Limeback is/was head of Health Canada's dental division.  He was
THE chief proponent of fluoride everywhere and in everything.  He finally
tired of the opposition and decided to check the research for himself so as
to be fully able to counter personally the anti-fluoride 'nuts'.  After 2
years of research he came out publicly with statements that the gov't. and
himself had been wrong and we needed to get rid of fluoride everywhere and
in everything.  This is the gist of what I got from my reading on the
subject.  pj