HALIFAX, NOVA SCOTIA – Canada’s hosting of this year’s G8 and G20 summits has placed a significant amount of pressure on the Harper government to show clear leadership at a time when international development in poorer countries is more required than ever.  When the Prime Minister announced that child and maternal health would form the subject of that leadership, many were heartened that a subject long-neglected would finally get due attention. The meetings here in Halifax this week provided International Cooperation Minister Bev Oda with an opportunity to move other G8 partners towards a clear consensus on how to move ahead on the file in time for the official meetings in a few weeks in Ontario. For Oda though, there is one elephant in…