The true extent of Russian meddling in Brexit remains murky
Facebook, Twitter and Google have provided little to the ongoing inquiries thus far.
Facebook found essentially no Russian effort to sway Brexit vote
It found just three politically-divisive ads purchased by Russian groups.
Facebook will alert you if you liked a fake Russian account
The company plans to roll out a new transparency tool by the end of 2017.
Twitter took a year to close a fake GOP account run by Russians
The real party reported it thrice within the span of a year.