By Rowan Contraho
Shiv Chopra, the Canadian microbiologist known for having helped stop the approval of rBGH, did so not by making true but complex arguments about its association to cancers, but by reducing the issue to an undeniable biological fact and thus simple legal issue.
The law said that no factory containing so much as a single rat dropping or feather is considered clean. rBGH gives cows mastitis which leads to pus in their milk. rBGH thus turns cows into pus factories.