Fourteen Russia-backed YouTube channels spreading disinformation have been generating billions of views and millions of dollars in advertising revenue, according to researchers, and had not been labeled as state-sponsored, contrary to the world’s most popular streaming service’s policy. Reuters reports that the channels, including news outlets NTV and Russia-24, carried false reports ranging from a U.S. politician covering up a human organ harvesting ring to the economic collapse of Scandinavian countries. Despite such content, viewers have flocked to the channels and U.S. and European companies have bought ads that run alongside them.