Facebook says about 10 million U.S. users viewed Russian-sponsored ads
https://www.reuters.com/article/us-facebook-advertising-viewers/facebook-says-about-10-million-u-s-users-viewed-russian-sponsored-ads-idUSKCN1C72X6
Facebook Inc said that about 10 million individuals in the United States had viewed Russian ads that it had shared with the U.S. Congress on Monday.