So what did I read? This from Raw Story:
Apparently this would cost enough so that beer prices would rise noticeably and cattle would suffer.
The FDA does not point to any actual harm from feedings of "spent grain." Apparently the bureaucracy is acting on a hypothetical.
Is this another instance of absurd threat inflation, like the hypothetical voter fraud at the polls that Republicans claim justifies reducing voter access? It might be. Can we trade "spent grain" restrictions for overkill in identification requirements? Just call it a wash? Something has to give ... this is wrong ...