With no notice other than a holiday-eve posting in the Federal Register, the US Food and Drug Administration has reneged on its long-stated intention
to compel large-scale agriculture to curb over-use of agricultural antibiotics, which it had planned to do by reversing its approval for putting
penicillin and tetracyclines in feed.
How long-stated? The FDA first announced its intention to withdraw those approvals in 1977.
www.wired.com...
For over 30 years the FDA has been trying to stop the practice of indescriminate antibiotic use in animals (placed in feed). Yesterday they basically
called this approach quits and will ask for “voluntary” adherence

Despite ongoing evidence that the antibiotics remain in the foodchain long
after they were given.