"Em defesa da pureza do vinho" ou "Mais uma história sobre proteccionismo"

Via ABC News:

The European Union approved a trans-Atlantic agreement on U.S. wine imports into a glutted European market Tuesday, but Germany called for the imposition of a "purity law" to protect European wines from U.S. vintners practices.
German Farm Minister Horst Seehofer said that a new EU code needed to be applied to assure the quality of European wines and that practices such as adding water to dilute the alcohol and aging wine with woodchips to improve flavor were unacceptable.
"Adding wood chips to wine in Europe is just unimaginable in our wine culture," said Seehofer.

Mas porque é que não deixam os consumidores decidir que produtos, e a que preços, comprar?