Has any one looked at Google Earth?

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I saw Google Earth so I downloaded it. I could see close up houses,trees,towns,cars and litteraly everything from all over the world. Well then I deceided to look for my town and then my house. I found my house, then I zoomed in and I could see my car in the driveway. I went to the back yard and could even see lawn chairs,even dirt. Everything in my private fenced in back yard,for the world to see. I couldn't believe my eyes. Now this is scarey if you think about it. Where is ones personal space? What do you think about this?