Today I submitted a comment on the official USDA regulatory forum on the question of coexistence in agriculture. Here is a link for background from a workshop on this topic held in North Carolina this March. Here is a link of you want to comment (>4500 people have so far and the comment period is open until May 11, 2015).
The point I hoped to make was that coexistence between different kinds of farming is something people have known how to do for a very long time, but it requires a certain level of reasonableness and cooperative spirit. That is rarely a problem when you are talking about real farmers and if there are rational standards for "adventitious presence." The issues to do with coexistence today arise from downstream players making unreasonable demands and by those which are not, by their own statements, interested in coexistence. The USDA seems to be trying hard to make this an open dialog, but there are aspects of this debate that need to be recognized for what they are.