The Russian invasion of Ukraine involves an online fight between truth and disinformation. We discuss how to spot lies and propaganda, with Svitlana Matviyenko, an assistant professor of critical media analysis at Simon Fraser University's School of Communication; Jane Lytvynenko, a journalist and senior research fellow at the Shorenstein Center on Media, Politics and Public Policy at Harvard University; and Lukas Andriukaitis, associate director of the Atlantic Council's Digital Forensic Research Lab in Belgium.