Congress seeks more information on the Google+ data exposure
It sent the company a letter requesting additional details.
Senate plans hearing on Cambridge Analytica's misuse of Facebook data
It wants to talk to other companies, too.
Zuckerberg says a 'version' of Facebook will always be free
He said it during his Senate testimony today.
Mark Zuckerberg will testify at a joint Senate hearing on April 10th
The Senate hearing is in addition to the already confirmed House hearing.
Facebook plans to brief Congress on the Cambridge Analytica scandal
Company representatives are meeting with committee staffers today.