New Facebook tool tells users if they've liked or followed Russia's 'troll army'

Tool allows users to see if they have engaged with Russian propaganda entity the Internet Research Agency, but won't reach millions already exposed to fake news

Facebook has launched a new tool to allow users to see if they've liked or followed Russian propaganda accounts, though the feature probably won't reach many of the millions of people exposed to fake news during US and UK elections.

Facebook on Friday quietly rolled out a new page that says, "How can I see if I've liked or followed a Facebook Page or Instagram account created by the Internet Research Agency?", referencing the infamous Russian entity and "troll army" accused of trying to influence American elections and British politics on social media.