It seems like this is one that will just never go away. Salmonella, a bacterium, causes far too much illness in the US and lack of adequate poultry testing from farm to table is the main problem. Without following the entire chain of custody, there is no way to know how or where the Salmonella is getting into the food supply.
This excellent article over at iwatchnews.com is an excellent backgrounder for the interested lay public. I wish the not-so-interested lay public would read about it, too, but I suppose that's hoping for too much.
ETA: The whole point of this post, which I forgot to mention, is that Salmonella in poultry is a potential health threat to our kitties, too. And a major reason why I oppose feeding raw meats.