Totally agree about the liberal bias. I wrote about that in the two posts below. But, I believe these "hearings" are pretty much a way for the government to push regulations with the advice from Facebook. It's a charade so the government could take more control of data privacy with Facebook as allies. There's a lot of things you can find out under the table when the answers are analyzed:

https://steemit.com/informationwar/@metalmag25/more-to-add-to-the-facebook-drama-zuckerberg-senate-hearing-data-privacy-monopoly-regulations-censorship

https://steemit.com/informationwar/@metalmag25/more-to-add-to-the-facebook-drama-zuckerberg-house-hearing-opioids-data-privacy-diamond-and-silk-paying-users-for-their-data