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This week: Talks continued between Air Canada and the union representing its pilots to avert a possible strike or lockout. Both sides will be in legal strike or lockout positions on Sept 18. That wasn’t the only bit of acrimony in the business world this week. Canada Bread Co. Ltd. is seeking damages from its former majority owner Maple Leaf Foods Inc. related to an alleged industrywide bread price-fixing scheme. Canada Bread’s parent company, Mexico-based Grupo Bimbo, has previously said that it was unaware of the bread maker’s role in fixing prices before its $1.83-billion acquisition in 2014. Along with this big bread news, there was also tantalizing shifts in the food business involving Campbell Soup and General Mills.