As companies share more information with governments, they are able to learn more and more about their citizens. Take Facebook, a company that Laura Poitras described as 'a gift to intelligence agencies'[1]. Facebook allows governments to arrest people planning to participate in protests before they have even begun. This is just the tip of the iceberg.
Our privacy is eroding. As a society, we are beginning to accept this lack of privacy as normal: and this is extremely dangerous. Privacy provides a place for us to be ourselves, to express ourselves in new ways without fear of being watched by preying eyes. If we lose privacy then we lose this ability to experiment, and, more importantly, we lose our power.
[0]https://aeon.co/essays/privacy-matters-because-it-empowers-u...
[1]https://www.washingtonpost.com/news/the-switch/wp/2014/10/23...