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Nightly News with Lester Holt, Oct. 21, 2012

21:37

4 dead in Wisconsin salon shooting; Romney, Obama in dead heat; Polls: Romney, Obama in dead heat; Debate: Focus likely on Libya, Iran, Syria; Elections cast spotlight on undecided voters; Violence explodes in Beirut; Holiday deals start early; ‘Come home, America’: George McGovern dies at 90.