Filtering is not as hot a topic in the UK as it is in the US because, as yet, the UK has no equivalent to the filtering laws affecting public libraries in America. However, this story from the BBC News site shows that the politicians in Britain are getting a little taster of what filters can - and can\'t - do. Last month, the House of Commons installed email filters to block spam and pornography. It has been revealed, though, that the filter is also blocking emails discussing important issues such as the Sexual Offences bill. It has led to some Members of Parliament to ask questions about the \"inability of filtering engines to work effectively\". An earlier story had reported that the filter was also blocking emails written in the Welsh language, which understandably upset the Welsh National Party members of parliament.