Economy

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EmbedVideo(4498, 482, 304); Chicago Teachers Union leaders voted Tuesday to end a strike that has closed classrooms for more than a week in the nation's third-largest school district. Union President Karen Lewis led the walkout on Sept.

Creative Commons photo courtesy flickr user 401(K) 2012 . By Larry Kotlikoff, with an introduction by Paul Solman Paul Solman: Boston University economist Laurence Kotlikoff has become our Social Security expert here at the Online NewsHour. Some of…