https://www.cnet.com/news/congress-to-grill-facebook-zuckerberg-over-data-mining-election-meddling-cambridge-analytica/ >Mark Zuckerberg is on Capitol Hill to deliver one of the most high-profile mea culpas in tech history. >The 33-year-old multibillionaire is testifying before a joint hearing of the Senate Judiciary Committee and Senate Commerce Committee on Tuesday and then talking to the House Energy and Commerce Committee on Wednesday.