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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.

How it works:

  • To find out if you followed one of the pages or accounts set up as part of the Russian campaign to encourage division during and after the 2016 election, go to this page.
  • You'll have to be logged into Facebook to use the tool, and may also have to log in to your Instagram account if you want to check your follows there, too.
  • You'll either see a message saying you didn't follow any of the pages or a list of the pages you did follow — along with the date you followed them.

Go deeper

Microwave energy likely behind illnesses of American diplomats in Cuba and China

Personnel at the U.S. Embassy in Cuba in Havana in 2017, after the State Department announced plans to halve the embassy's staff following mysterious health problems affecting over 20 people associated with the U.S. embassy. Photo: Sven Creutzmann/Mambo photo/Getty Images

A radiofrequency energy of radiation that includes microwaves likely caused American diplomats in China and Cuba to fall ill with neurological symptoms over the past four years, a report published Saturday finds.

Why it matters: The National Academies of Sciences, Engineering, and Medicine's report doesn't attribute blame for the suspected attacks, but it notes there "was significant research in Russia/USSR into the effects of pulsed, rather than continuous wave [radiofrequency] exposures" and military personnel in "Eurasian communist countries" were exposed to non-thermal radiation.

Georgia governor declines Trump's request to help overturn election result

Georgia Gov. Brian Kemp. Photo: Elijah Nouvelage/Getty Images

Georgia Gov. Brian Kemp pushed back on Saturday after President Trump pressed him to help overturn the state's election results.

Driving the news: Trump asked the Republican governor over the phone Saturday to call a special legislative session aimed at overturning the presidential election results in Georgia, per the Washington Post. Kemp refused.