Has dry food been added to the pet food recall just now?

I just heard something on CNN. They said that dry food could be potentially tainted as well. And it's not rat poison but a chemical used to make plastics. I want to know how the heck that ended up in pet food but I guess we'll never know. I feed my puppies both Nutro and Science Diet but hard food, should I worry? Should I have blood work done on them?