Bunge Canada's recent purchase of the Canadian Wheat Board concludes the second chapter in its demise since the Canadian government  attempted to turn it into a private grain company. There are several reasons for the failure.Bunge Canada, the majority partner in Global Grain Group, recently purchased the Canadian Wheat Board (CWB). This concludes the second chapter in the board's demise since the Canadian government ended its monopoly and turned the CWB into a private grain company. Well, sort of private. The government lavished the new enterprise with a few billion dollars to help it through the transition and get it off and running. The problem of course was that it never did successfully launch, and the Canadian government wanted t...