https://www.cnbc.com/2018/03/21/mark-zuckerberg-says-hes-open-to-testifying-to-congress.html

While not definitively saying yes, Mark Zuckerberg says he's "open" to testifying before members of Congress regarding Facebook's recent privacy scandal involving Cambridge Analytica. The data firm, which worked for President Donald J. Trump's presidential campaign before the 2016 election, is now embroiled in an ongoing controversy about how it collected user data from the social networking giant without user consent.

In a wide-ranging interview with Recode this afternoon, the Facebook CEO and co-founder said that he would appear before legislators if he was the "right' one inside the company to give lawmakers information about what happened.