WHY DID Gov. Arnold Schwarzenegger sign a bill Oct. 7 that requires manufacturers of cosmetics to disclose any ingredients that could cause cancer? This state has so many consumer warnings that people don't even notice them any more, and it's not as if folks don't know there are chemicals in beauty products. Then there's the fact that the bill's author, state Sen. Carole Migden, D-San Francisco, tried to pass the measure by pushing a "yes" button at the desk of a Republican Assembly member who opposed the bill. (She later apologized, and her voted was pulled.) The point is: Any...