Swapping facial features protects online privacy / New Scientist, 28 July 2008
http://digbig.com/4xgca
"After finding itself in hot water with privacy advocates, Google has begun obscuring the faces of people in its Street View service, which lets users of Google Maps zoom in to view street level images. But the images look decidedly odd, with whole streets peopled by blurred faces....Aside from Street View, the system could be used to obscure the faces of military personnel or eyewitnesses to crime."