Chicago public school teachers picket on an overpass near downtown on September 10 2012 in Chicago Illinois More than 26000 teachers and support...
{"Image ImageDescription": "CHICAGO, IL - SEPTEMBER 10:  Chicago public school teachers picket on an overpass near downtown on September 10, 2012 in Chicago, Illinois. More than 26,000 teachers and support staff  hit the picket lines this morning after the Chicago Teachers Union failed to reach an agreement with the city on compensation, benefits and job security. With about 350,000 students, the Chicago school district is the third largest in the United States.  (Photo by Scott Olson/Getty Images)", "Image Copyright": "2012 Getty Images"}