‘Your Data Will Be Used Against You’: Author of new book on the dangers of a surveillance society

**Executive summary:** This interview with law professor Andrew Guthrie Ferguson examines how ubiquitous digital data collection—from doorbell cameras and automated license plate readers to Google location histories, connected cars, drones, and medical devices—creates powerful law-enforcement surveillance capabilities, exposes gaps in Fourth Amendment protections, and raises concerns about warrants, data-for-sale workarounds, police partnerships (e.g., Ring and Flock), and the potential for life‑data (like pacemaker readings) to be used in prosecutions.