Thursday, August 21, 2014“This is a very, very challenging time for unions,” said John Logan, a professor of labor history at San Francisco State University. See more at: http://www.educationnews.org/education-policy-and-politics/teachers-unions-rally-face-uncertain-future/#sthash.eQwMF1DC.dpuf. http://www.educationnews.org/education-policy-and-politics/teachers-unions-rally-face-uncertain-future/