Facebook CEO Mark Zuckerberg testifies before the House Judiciary Subcommittee on Antitrust, Commercial and Administrative Law in the Rayburn House office Building on Capitol Hill, in Washington, D.C. on July 29, 2020. Facebook and other tech platforms are under pressure to identify state-controlled accounts, including those which share news. (Mandel Ngan/Reuters)

Tech platforms struggle to label state-controlled media