This is a link to an article in the New Republic that discusses the history collective bargaining for public employees. I did not agree with everything in the article but I did find it interesting.
http://www.tnr.com/article/politics/83829/Wisconsin-public-employees-walker-negotiate?page=0%2C0
http://www.tnr.com/article/politics/83829/Wisconsin-public-employees-walker-negotiate?page=0%2C0
