For years, Facebook has been in a defensive crouch amid a slew of privacy scandals, antitrust lawsuits and charges that it was letting hate speech and extremism destroy democracy. Early Thursday, though, it abruptly pivoted to take the offensive in Australia, where it lowered the boom on publishers and the government with a sudden decision to block news on its platform across the entire country. That power play – a response to an Australian law that would compel Facebook to pay publishers for using their news stories – might easily backfire, given how concerned many governments have grown about the company’s unchecked influence over society, democracy and political discourse. But it’s still a startling reminder of just how much power CEO Mark Zuckerberg can wield at the touch of a figurative button. “Zuckerberg´s flex here shows how he can disrupt global access to the news in a heartbeat,” said Jennifer Grygiel, a social media expert and professor at Syracuse University. “No company should have this much influence over access to journalism.” Facebook’s move means people in Australia can no longer post links to news stories on Facebook. Outside Australia, meanwhile, no one can post links to Aussie news sources such as the Sydney Morning Herald. Facebook said the proposed law “ignores the realities” of its relationship with publishers that use its service to propel their stories across the world. Technology and media experts have also raised serious concerns.