Now you can see if you followed Russian Facebook pages targeting election

Facebook CEO Mark Zuckerberg has seen his company embroiled in scandal over the Russian campaign. Photo: Justin Sullivan / Getty Images

A Facebook tool to show users whether they followed pages placed by Russian operatives in the 2016 election went live on Friday. It covers pages and accounts on the company's main social network and its subsidiary Instagram between between January 2015 and August 2017.

Real talk: Facebook isn't telling users who didn't follow any of the pages whether they were exposed to the divisive content in their newsfeed when, for example, it was shared by a friend during the 2016 election. That's a far broader group than those who connected directly with the accounts.