With drums, posters and a cause, 70 Dalhousie University students threaded through Halifax’s core late last month protesting rights abuses in North Korea. It was not a controversial cause — not the way abortion or any of the other hot topics of the day might be, organizer Robert Huish acknowledges. Their biggest challenge, he said, was figuring out how to keep candles lit in sub-zero temperatures. The turnout was great — perfect, even — quite likely because the participants’ academic success depended on it. Mr. Huish, a Dalhousie professor, is perhaps the first university instructor in Canada to award...