The federal government named a special mediator Wednesday in the hope of ending rotating walkouts that appear to be getting more permanent. Labour Minister Patty Hajdu announced the appointment of Morton Mitchnick hours after the Canadian Union of Postal Workers (CUPW) said it would keep its members on the picket lines in the GTA. The announcement made the strike seem rather more permanent. The minister said Mitchnick, a former chair of the Ontario Labour Relations Board, is a highly respected senior arbitrator and mediator. She said he will be joining a team of federal mediators from the Federal Mediation and Conciliation Service that have been working with the two parties.