Ashley Yates is a young Black Lives Matter activist. She’s also known as @BrownBlaze on Twitter and has nearly 30,000 followers. But even she was shocked when she went from Missouri to New York City for a protest and police officers recognized her. That’s when Yates realized the police were tracking her on social media. That experience is documented in a new series about when surveillance in the digital age goes too far. The executive producer of the series tells us more.