https://phys.org/news/2018-05-eu-lawmakers-zuckerberg-privacy.html

The company is also under pressure to comply with tough new EU new laws, called GDPR, on the use and protection of personal data.

The president of the assembly's influential Civil Liberties, Justice and Home Affairs Committee, Claude Moraes told The Associated Press that the fact Zuckerberg's testimony will be heard by the public "is very significant."