By Max Musson: An interesting article appears on the Guardian website today  featuring a video in which Gary Shopland, an ex-BNP member, tells the story of his alleged service as an undercover police informant. The article is interesting for a number of reasons; firstly because Shopland’s membership of the BNP apparently ended in 2003 when he says he chose to stop working as an informant; because Shopland reveals nothing of any significance about the BNP;…