Yeah, lets just believe the news that you claim you don't listen to or watch. We have never had any issues with any of the beef, poultry or seafood that we have gotten at Walmart nor any issues with fruit and vegetables there.
Well then, consider yourself lucky. Maybe you don't believe Jackie, but would you believe Consumer Reports?
According to Consumer Reports, Walmart consistently ranks toward the bottom of their listing of supermarket chains in terms of "quality of fresh foods and vegetables, meats, [and] store-prepared foods and baked goods." Out of 68 supermarkets evaluated by Consumer Reports, Walmart falls at #67.
In the past they have been cited for treating their Beef to make it look more red.