I think the other issue that's more relevant and more important to this on-farm food safety issue is on-farm food safety when you are selling your food to your neighbour. That's the last place you want to contaminate a food source. Even with the terrible situation in Walkerton, Ontario, years ago, their chief medical officer of health told me that they had a second outbreak not long after, but it was in strawberries served at a church supper. The strawberry patch was right beside the cattle pasture, and it accidentally became contaminated. It was local, fresh, all that stuff.
There again, if we're going to put this emphasis on local, I see all the more reason to have policies that support on-farm food safety.