Checkout Line: Organic chemistry

Is industrial organic produce -- the stuff from large-scale operations, which some critics say is to small-scale organic as Twinkies is to homemade cupcakes -- just as bad as the conventional stuff when it comes to pesticides? Well, that is a slippery question indeed.

In terms of keeping bad stuff out of your food, the USDA's organic-certification program represents a move in the right direction. But it doesn't guarantee that your food will be grown or raised using what you call the "right kind of farming," if what you mean by that is free of toxins.