Cheating is not unheard of on university campuses. But cheating on an open-book, take-home exam in a pass-fail course seems odd, and all the more so in a course about ethics. Yet Columbia’s Graduate School of Journalism is looking into whether students may have cheated on the final exam in just such a course, “Critical Issues in Journalism.” According to the school’s Web site, the course “explores the social role of journalism and the journalist from legal, historical, ethical, and economic perspectives,” with a focus on ethics. ... “Our students are strivers,” he added. “But they are striving to get...