Politicians' failure to address what voters have always regarded as one of their top two priorities (the other is the economy) has opened the door to the BNP. Nick Griffin does not owe his opportunity to peddle evil views on tonight's Question Time to some faulty judgment of the BBC. His vote in the European elections earned it for him. And that opportunity only arose because of the political cowardice and irresponsibility of the two main parties – but particularly of the Labour Party. Poll after poll shows BNP support coming from ex-Labour voters who believe their party has deserted them on immigration, and failed to represent their interests as underdogs in what until recently was a country characterised by unparalleled prosperity.