Yams and Sweet Potatoes are substantially different vegetables. Here is the US a yam is usually the red or orange one in the vegetable isle while the lighter white one is a sweet potato which has about 4 times the sugar as a yam.
According to newspaper reports one Italian cheese factory over a two year period has recovered 11000 tons (!) of spoiled cheese and reworked it into their Mozzarella and Gorgonzola cheese, maggots and all! I guess I won't eat any pizza for a while.
Just had two doughnuts and big mug of fresh Columbian coffee to wash this story down.