Glenn Simpson, in the now-released transcript of last summer’s interview with congressional investigators on the Trump dossier, mentions his former employment with The Wall Street Journal and Roll Call, the Capitol Hill newspaper.

He doesn’t mention the Unification Church-owned (i.e., Moonies) Insight magazine in the mid-1980s. I know because I worked there too. As did others: Malcolm Gladwell was one—I got his desk when he left for the Washington Post. John Podhoretz, a columnist for the New York Post and editor of Commentary...