news.bbc.co.uk/1/hi/education/8112747.stm
Now I abhor the BNP and their policies however they are a LEGAL political party and as a teacher I would find it appalling that my freedom to join legal political parties was being curtailed.
If the establishment believe the BNP to be that abhorrent then they should make them illegal. If a teacher acts in a racist, sexist, homophobic way AT WORK, then discipline them on that basis.
If BNP membership is to be banned then what about the SWP, some would say they are as extreme.