Ksenia Coffman is an antidote to the site's poisonous sources. Her fellow editors have called her a vandal and a McCarthyist. She wants them to stop glorifying fascists — and start citing better sources. In this insight into the concerning misinformation plaguing the open-source encyclopaedia, Noam Cohen explores Coffman's quest to tackle one heavily misinformed aspect of the site: World War II. "Coffman knows the book is legit because she happens to have a copy on loan from the library. When she goes to the cited page, she finds a paragraph that appears to confirm all the Wikipedia article's wild claims. But then she reads the first sentence of the next paragraph: 'This is, of course, nonsense.'"