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Air Canada customer service agents picket at Pierre Elliott Trudeau airport in Montreal Tuesday, June 14, 2011 after walking off the job following failed negotiations between union's and management on pension reform issues.Graham Hughes/The Canadian Press

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A passenger rests on her luggage at Pierre Elliott Trudeau airport in Montreal Tuesday, June 14, 2011 as Air Canada customer service agents walked off the job following failed negotiations between union's and management on pension reform issues.Graham Hughes/The Canadian Press

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Passengers check in at the Air Canada counter manned by Air Canada managers at Pearson International Airport in Toronto June 14, 2011MIKE CASSESE

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Passengers wait in line to check in at Pierre Elliott Trudeau airport in Montreal Tuesday, June 14, 2011 as Air Canada customer service agents walked off the job following failed negotiations between union's and management on pension reform issues.Graham Hughes

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Passengers wait at a check in desk at Pierre Elliott Trudeau airport in Montreal Tuesday, June 14, 2011 as Air Canada customer service agents walked off the job following failed negotiations between union's and management on pension reform issues.Graham Hughes

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Air Canada customer service agents picket outside Pierre Elliott Trudeau airport in Montreal Tuesday, June 14, 2011 after walking off the job following failed negotiations between union's and management on pension reform issues.Graham Hughes/The Canadian Press

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Security guards receive instructions near the Air Canada counter at the airport after customer service agents and other workers went on strike after their union and the airline failed to reach an agreement in Halifax on Tuesday, June 14, 2011.Andrew Vaughan/The Canadian Press

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