[nickik]

Im a libertarian and I disagree with you on this point. A market system should be efficient, our hole argument is based on efficiency.

What you propose is not efficient and no consumer would want to pay for this level of information, thus it would not happen.

The important thing is that if somebody claims something that is not true, its fraud, he can be sued, during a lawsuit investigation have to be made to verify and judge the case.

Voluntary groups could start labeling products that have all information available. Shops could require producers to do it.

There are many ways a free society can handle these problems. We don't know exactly what would happen, but we have lots or reason to assume that something along these lines would happen.