One of the first questions Zuckerberg had to answer is why Facebook makes its terms of service, privacy policies and user agreements so hard for people to understand. Rep. Eshoo (D-California) called the system a "minefield," saying the company needs to make the language of those clear and pedestrian enough for users to understand what's being done with their data. She also told him that the damage done to our democracy by Russia's use of Facebook's platform, leading up to the 2016 US presidential election, was "incalculable."

Similar to yesterday's hearing, the topic of federal regulation came up today, and Zuckerberg seemed open to the idea of Facebook having to comply to more government rules. Rep. Green (D-Texas) asked the Facebook CEO he'd be open to implementing certain aspects of the European Union's General Data Protection Regulation (GDPR) in the US.

Zuckerberg said Facebook is committed to implementing those standards, which among other things ensure that requests for user consent rely on language that's easily understandable, will be implemented worldwide. That said, Zuckerberg noted he isn't quite sure what aspects of GDPR, exactly, would extend to the US and other countries. "We believe that everyone around the world deserves good privacy controls," he said.