The senators say products such as Google Search and YouTube may "perpetuate racist stereotypes" and the tech giant may not be a safe workplace for Black employees.
The leaders of Facebook, Twitter, and Google were not eager to admit fault when it comes to bad information on their platforms, but it's clear Congress is getting closer to regulation.
Facebook's Mark Zuckerberg, Google's Sundar Pichai and Jack Dorsey of Twitter will testify about the steps they have taken to deal with misinformation about the election, COVID-19 and vaccines.
Sundar Pichai addressed employees in an internal email after thousands of them publicly criticized the tech giant for pushing out a top artificial intelligence researcher.
The chief executives of Facebook, Twitter and Google face skepticism from a Senate committee over their decisions about what content to allow and what to take down from their platforms.
Facebook's Mark Zuckerberg, Twitter's Jack Dorsey and Google's Sundar Pichai go before the Senate Commerce Committee to defend Section 230, a law that protects them from lawsuits over users' posts.
Rep. David Cicilline, D-R.I., says Amazon, Facebook, Google and Apple operate like monopolies and need to be broken up or regulated.
The CEOs tell Congress that the giant American tech companies do not stifle competition, saying the concern that too much power is concentrated in too few companies is unfounded.
The heads of Facebook, Google, Amazon and Apple will face lawmakers' questions about whether they are using their power to squash competition.
Tech companies have led the way on remote work during the coronavirus pandemic, thanks to a workforce that can perform many jobs outside the traditional office.