http://beta.images.theglobeandmail.com/media/www/images/flag/gam-masthead.pngBy Campbell Clark. As he prepares a passage to India, Governor-General David Johnston knows there’s a goal to attract more of the subcontinent’s students to Canada. But he also has an eye on promoting traffic in the other direction: seeing more Canadian teachers and students travel abroad. In his low-key way, Mr. Johnston has fit his own passion for international education into a major Canadian objective: drawing foreign students paying higher international tuition fees into Canadian schools. More...