The way you use data is taken in to consideration by the law. If I take a photo outside and you happen to be in it then thats legal. If I follow you around every day with a camera pointed at you then its not legal anymore even though its the same data.
> If I take a photo outside and you happen to be in it then thats legal.
In the U.S. Other countries, however, have decided that private individuals should not be subjected to having their face stored in a permanent record without their consent. Thus the photographer is required to take the extra step of anonymizing the photo (e.g. by blurring faces) before publishing.
