I every so often have a look at Trading Standards product recall page Quite often I am shocked by some of the things that are recalled as this is 2007 and this shouldn't be happening. Like say the mattel and lead paint etc. Anyway I've just clicked on a couple recent recalls 1= lamb sold in Asda that was not intended to be eaten and then another states most own brand bourbon biscuits may contain 'wire' in M & S' case those biscuits went on to make a cheesecake, so that too is dangerous.
I think it's a good idea to save the trading standards page and visit it every few weeks 'just in case' We buy this stuff in 'good faith' and this is the first I've heard about it.