Supermarket giant Tesco today found itself under siege from sweet-toothed shoppers after slashing the price of many chocolate bars to just 20 pence…Store bosses hope the move will help it recover from a massive Christmas sales slump. SEE OUR COPY FOR DETAILS…Pictured: A tesco shopper with bags full of chocolate bars…Pic: Simon Czapp/Solentnews.biz.© Solent News & Photo Agency