You can read about it here.
The USDA argues that a market-based program would be just as safe, and less expensive.
Additionally, USDA will rely on “market forces” to inspire ranchers and farmers to join a separate voluntary cattle tracking system, they said. The traceback system would be used to combat mad cow and other virulent livestock diseases.
Free market regulation? There’s an oxymoron if I’ve ever heard one.
My favoite bit comes from this article on the same topic.
Agriculture Secretary Mike Johanns pointed out testing is not a food safety measure. Rather, it’s a way to find out the prevalence of the disease.
Presumably that was said with a straight face. ‘Cause y’know, finding out the prevalence of a disease doesn’t affect food safety measures at all.