Teabag Party-ers, 9/12’ers, angry town hall crowds, Cindy Sheehan, Code Pink, G-20 crazies, Greenpeace, protesters everywhere, may I please introduce: European dairy farmers. Take note. They could teach you all a thing or two about how to match your form of protest to the goal you aim to achieve. Last month they dumped 3 million liters of milk on fields in Belgium in protest against falling milk prices. And today, this. The photo says it all.Alexandra Fenwick is an assistant editor at CJR.