Technological breakthroughs are usually as much revelations as revolutions, satisfying powerful latent demands. Twentieth-century people embraced mobility, economy, lightness, spontaneity, rapid feedback and sharing with friends and family. Supplanting earlier miniature cameras, the 21st-century cell phone camera has delivered all those qualities. Like the Polaroid and the cheap film camera, it offers a distinctive look that appeals even to some professionals. And it has also amplified anxieties about photography: security, privacy, and intellectual property. Join Edward Tenner, an independent writer and editor who specializes in the cultural aspects of technological change for a wide-ranging talk on the subject. Tenner writes for The Atlantic on history and current events and is now a visiting scholar in the Rutgers School of Communication and Information.