Twitter and Facebook chiefs defend safeguards over election disinformation

Mark Zuckerberg (Michael Reynolds/Pool via AP)

The chief executives of Twitter and Facebook have defended their safeguards against disinformation in the US presidential election, and promised Congress they would take vigorous action for two special elections in Georgia that could determine which party controls the Senate.

Jack Dorsey and Mark Zuckerberg told a hearing of the Senate Judiciary Committee they have strong programmes in place to protect their platforms from being used to disseminate falsehoods or discourage people from voting in the Georgia elections.