Online ads from websites you've visited... smartphones and cars transmitting your location... data-gathering surveillance operations across the Internet and on your phone lines. You are being watched.... Angwin offers a revelatory and unsettling look at how the government, private companies, and even criminals use technology to indiscriminately sweep up vast amounts of our personal data. She argues that the greatest long-term danger is that we start to internalize the surveillance and censor our words and thoughts, until we lose our freedom. Appalled at such a prospect, Angwin conducts a series of experiments to try to protect herself.