US Senator Al Franken connects the dots for Facebook:

“People are buying ads on your platforms with rubles…You put billions of data points together all the time. You can’t put together rubles with a political ad and go, hmm, those two data points spell out something bad?”

http://www.motherjones.com/politics/2017/10/al-franken-tears-into-facebook-counsel-at-senate-hearing/