Facebook, Google And Twitter Testify Before Congress On Russian Disinformation

WASHINGTON, DC - OCTOBER 31: With a Twitter post encouraging voters to vote from home displayed behind him, Sen. Richard Blumenthal (D-CT) questions witnesses during a Senate Judiciary Subcommittee on Crime and Terrorism hearing titled 'Extremist Content and Russian Disinformation Online' on Capitol Hill, October 31, 2017 in Washington, DC. The committee questioned the tech company representatives about attempts by Russian operatives to spread disinformation and purchase political ads on their platforms, and what efforts the companies plan to use to prevent similar incidents in future elections. (Drew Angerer/Getty Images)