Oldham BNP

How much have the recent riots and disturbances across the north of England and Midlands got to do with far right racists, and more specifically with the British National Party? In last month's elections the BNP scored their best ever results in those areas where there has been racial unrest. They say they are now opposed to violence. Yet they have been quick to create - and exploit - divisions between whites and Asians. The BBC's Peter Marshall has been investigating the truth about the BNP.