I got an email for one company with a recall on their dog food products, so decided to do a search, and was totally shocked at the numerous other recalls there are!
"The FDA tested various dog foods (cat foods were not tested) purchased from store shelves in the Washington, DC area and found many to contain the euthanizing drug pentobarbital. The FDA stated the source of the euthanzing drug could only come from euthanized cats, dogs, or horses."