https://www.theguardian.com/technology/2018/mar/27/mark-zuckerberg-testify-congress-cambridge-analytica-data-scandal

Calls for CEO to appear reach fever pitch after Cambridge Analytica reports, paving way for showdown over Facebook accountability

Facebook’s chief executive, Mark Zuckerberg, has agreed to testify before the United States congress in the wake of a data harvesting scandal that has sent the company’s share price tumbling and prompted numerous investigations and lawsuits.