Isn’t there something incongruous about a human rights organization providing a platform to a journalist who has whitewashed human rights abuses? Next week, an online event organized by the human rights group “3 Generations” will feature New York Times op-ed columnist Roger Cohen, who sparked an international furor in 2009 when he visited Iran and announced that the oppressed Jews there were not really so oppressed, after all. Cohen’s assertion that Iranian Jews were “living, working and worshiping in relative tranquility” was met with scorn across the political spectrum. Jeffrey Goldberg, in The Atlantic, called him “credulous.” The Anti-Defamation League...