Photo:Alejandro Moreno de Carlos/StocksyKraft Foods is pulling back 6.5 million boxes of its macaroni and cheese product after it was found that some of those boxes contain small pieces of metal.This recall comes just days after a recent listeria outbreak linked to Blue Bell Creameries ice cream. This bacteria doesnt merely cause run-of-the-mill food poisoningit has the potential to be deadly. In fact, in this most recent...