For those who don’t know, BNP stands for ‘British National Party’, a right-wing party that loves to hate. Whilst their 2007 membership list was placed online , to shame the members, it has seemingly since been taken down. However, when data is released on the web, it is very hard to get it back. Remember AOL’s search data scandel, or the AACS encryption key controversy; you can’t put the cat back in the bag.
A few other thoughts are available on my other (rarely-updated) blog.