Regardless of how strongly one feels about unions, pro or con, there simply is no excuse for using violence to promote your beliefs. Protesting is an American tradition and a right. But damaging other people's property and persons is not. Only goons do that, no matter which side they are on. I fail to see where Michigan's RTW law deprives any union member of his job, livelihood, benefits or power to bargain collectively. It does reduce the overall monopolistic power of unions to subjugate non-union members by forcing them to pay dues. Every person in this country has the right to not join a union. Conversely, by not joining a union, that person does not necessarily benefit from the union's bargaining power. No one should argue that unions have not benefited the American worker, they have. Bur when unions dictate to all American workers by forcefully collecting dues, using those dues to elect politicians favorable to the union interests and causes but not necessarily non-union interests and causes, then that is going way too far. Living in MD opens one's eyes to the unusually high impact, both positive and negative, unions have on the people. When in high school, my son applied for a part-time job at the local Safeway. The union demanded he pay dues as a condition of employment, even though he would not be considered a union member and would not enjoy union benefits. Needless to say, he paid the dues but took away from that that unions are not necessarily beneficial to all workers. That sounds minor, but not to a high school student trying to learn the values of working and becoming a constructive member of society.