https://www.reuters.com/article/us-usa-tech-congress/facebook-twitter-on-defense-in-u-s-congress-over-foreign-bids-to-tilt-politics-idUSKCN1LL14Q

Top executives from Facebook Inc and Twitter Inc defended their companies in the U.S. Congress on Wednesday over what lawmakers see as a failure to combat continuing foreign efforts to influence U.S. politics.