Schneier says we're living in a "golden age of surveillance" and it happened because of computers, smart phones, security cameras and cash registers. He warns that we exude data that paints an intimate picture of who we are. Author of "Data and Goliath: The Hidden Battles to Collect Your Data and Control Your World."
Bruce Schneier spoke at the Commonwealth Club of California. He's the CTO of Resilient Systems and a fellow at Harvard's Berkman Center. Moderator is Shari Steele of the Electronic Frontier Foundation.