The USDA announced that public access to that information would now be mediated through Freedom of Information Act requests.
There was a dog food poisoning reported [earlier this week](http://patch.com/illinois/hydepark/s/g0ven/illinois-company-...) The "supplier" of the poison dog food is probably pretty happy the public can't figure out which other pet food manufacturers (Besides Evanger's) they vendor.
This move was likely designed to hide facts from the public and to make investigative journalism a lot more difficult. Public health and safety data needs to be public and squelching it is akin to public endangerment.
[edit: thx for grammar correction.]