Surveillance technology is slowly encroaching on every part of our lives. With regulation at the federal level slow to materialize, local governments are taking action. Two American cities — San Francisco, Calif. and Somerville, Mass. — recently passed local laws to ban the use of facial recognition technology by police and other government agencies. Is local advocacy our best bet for keeping the surveillance state at bay? Kade Crockford, director of the Technology for Liberty Program at the ACLU of Massachusetts, discusses a growing local movement to protect privacy.