In January, Zuckerberg touted the company’s effort to promote “high quality news” in order to prevent “sensationalism, misinformation, and polarization.” But Siva Vaidhyanathan, director of the University of Virginia’s Center for Media and Citizenship, believes Facebook’s problem with misleading news posts is essentially unsolvable in a society that protect people’s right to free speech. “There’s no way to regulate content discrimination in the United States of America,” he says. “That just won’t pass First Amendment muster. That’s just never going to happen.”