The US Justice Department has filed charges against 13 Russian nationals and three Russian groups for interfering with the 2016 presidential election. From a report: In an indictment [PDF] released on Friday, the Justice Department called out the Internet Research Agency, a notorious group behind the Russian propaganda effort across social media. Employees for the agency created troll accounts and used bots to prop up arguments and sow political chaos during the 2016 presidential campaign. Facebook, Twitter and Google have struggled to deal with fake news, trolling campaigns and bots on their platforms, facing the scorn of Capitol Hill over their mishandlings. The indictment lists 13 Russian nationals tied to the effort.