Chicago Teachers Union President Karen Lewis, left, listens to CTU Vice President Jesse Sharkey speak at a press conference following a meeting of delegates Sunday, Sept. 16, 2012 in Chicago. The Chicago teachers union decided Sunday to continue its weeklong strike, extending an acrimonious standoff with Mayor Rahm Emanuel over teacher evaluations and job security provisions central to the debate over the future of public education across the United States. (AP Photo/Sitthixay Ditthavong)
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