The stronger a culture, the less it fears the radical fringe. The more paranoid and precarious a culture, the less tolerance it offers.

Amazingly, we’ve become a culture that considers Twinkies, Cocoa Puffs, and Mountain Dew safe, but raw milk and compost-grown tomatoes unsafe.

In my opinion, if there is one extremely legitimate use for petroleum besides running wood chippers and front-end loaders to handle compost, it's making plastic for season extension. It parks many of the trucks [for cross-country produce transportation]. With the trucks parked, greenhouses, tall tunnels, and more seasonal, localized eating, can we feed ourselves? We still have to answer that burning question.

A farmer friend of mine told me recently about a busload of middle school children who came to his farm for a tour. The first two boys off the bus asked, "Where is the salsa tree?" They thought they could go pick salsa, like apples and peaches. Oh my. What do they put on SAT tests to measure this? Does anybody care? How little can a person know about food and still make educated decisions about it? Is this knowledge going to change before they enter the voting booth? Now that's a scary thought.

What happens is all these things we're seeing – campylobacter, E coli, mad cow, listeria, salmonella, that weren't even in the lexicon 30 years ago – that is the industrial paradigm exceeding its efficiency. So these Latin squiggly words that we're learning to say – bovine spongiform encephalopathy – are nature's language screaming to us: ENOUGH! And the question then is: what will it take for us to listen? And my contention is that Wall Street is still wearing conquistador mentality and uniforms, and nobody is listening to the pleadings of nature saying: 'Enough.'

Ours is certainly not an old culture. Yet in recent decades we've used more energy, destroyed more soil, created more pathogenicity (temporarily stopped some too, for sure), mutated more bacteria, and dumped more toxicity on the planet than all the cultures before us-combined. I love the United States, but I am not blind to the wrongs. I have no desire to live anywhere else, but that doesn't mean I think everything we're doing should be done or can be maintained.

The stronger a culture, the less it fears the radical fringe. The more paranoid and precarious a culture, the less tolerance it offers.