https://www.reuters.com/article/us-usa-trump-russia-tech/tech-executives-to-testify-at-u-s-congress-russia-hearings-idUSKCN1C234Q

Executives from Facebook, Alphabet Inc's Google and Twitter will appear in the U.S. Congress in the coming weeks as lawmakers probe Russia's alleged interference in the 2016 U.S. election, committee sources said on Wednesday.