https://www.theguardian.com/technology/video/2018/apr/11/zuckerberg-video-highlights-facebook-testimony-hearing-best-moments

The Facebook CEO, Mark Zuckerberg, again faced lengthy questioning from Congress on Wednesday. The key topic of debate was the company’s ability to track users in areas such as shopping habits, browsing histories and users’ locations. Zuckerberg also revealed that his own personal data had been handed over to the political consultancy Cambridge Analytica.