Privacy invasion or webcam art? 'Screening Reality' walks a fine line

Deep in the heart of Europe sits a massive display full of live camera feeds from all over the world. Visitors drop by to peer in on unsuspecting strangers, staring blankly at scenes both intimate and banal -- sleeping babies, pedestrians, empty storefronts. A computer silently churns nearby, bringing up new video streams and with them, new windows into the lives and habits of others. It may sound like something out of a dystopian future, but for Pierre Derks, it's reality. Derks, 33, is a Dutch...