I was recently on a site reading about Google Maps. In some places they have to blurr out because they have to follow the law of the countries/cities laws. I think it is pretty justified because you never know who could be using Google Maps, and what they are using it for. They could be plotting to plant a bomb, or a shooting, you just never know. Though it would be very useful for education, I can see why it would be a law. I've never really noticed anything mysterious, I don't visit the site often, but anytime I have I don't see anything out of place or unusual. In the picture below is were they blurred out the Cornell University in New York.