Contains very strong and offensive language In recent years the British National Party has denied that it's a fundamentally racist organisation and touts itself as a legitimate political party. But in a BBC documentary - The Secret Agent - a BBC reporter went undercover to infiltrate the BNP in the north west of England. What he captured on camera in secret filming is simply shocking: BNP activists fantasising about attacking mosques with rockets and Muslims with guns; members of the party admitting to campaigns of violence and intimidation against minority groups and a speech from the current BNP Leader Nick Griffin in which he boasts that his words could lead to seven years in prison if made public.