https://www.theguardian.com/technology/2018/may/22/european-parliament-livestream-mark-zuckerberg-appearance-facebook

Facebook chief initially agreed to closed-door meeting, but will now speak publicly

Mark Zuckerberg will appear publicly before the European parliament on Tuesday, ending a terse standoff with the institution, but further inflaming tensions with the House of Commons, which has repeatedly requested an appearance from the Facebook founder.