[Chip's Mom]

I copied this off yahoo news and it is only part of the article but it does reference dry food.

While we have no doubt that melamine is present in the recalled pet food, there is not enough known data on the mammalian toxicity levels of melamine to conclude it could cause illness and deaths in cats. With little existing data, many questions still remain as to the connection between the illnesses and what has caused them," Hooker said.
The recall involved nearly 100 brands of "cuts and gravy" style dog and cat food made by Menu Foods. The recall covered products carrying names of major brand-name and private-label products sold throughout North America.
The apparently melamine-contaminated wheat gluten also was shipped to an unnamed company that manufactures dry pet food. The FDA is attempting to determine if that product, imported from China, was used to make any pet food, Sundlof said. There is no risk to human food, he told reporters.
Menu Foods used wheat gluten, a source of vegetable protein, to thicken the gravy of its pet foods, FDA officials have said.
Menu Foods spokesman Sam Bornstein did not know whether company testing had found melamine in its products. The company planned a press conference later Friday.