Tim at Nature's Harmony has a great post regarding what needs to be done to change the food industry. I am a great admirer of what Tim and his wife are doing on their farm for their customers. You can read his post here and my observations are posted there and here.
I agree there needs to be a "revolution" in food and, in the main, it must come from consumers. That is why I built the HungryGarden.com web site so I can find fresh local food near me and allow others to do the same.