I suspect that some in our community at large are being somewhat paranoiac about this innovation. What burglar worth his or her salt is going to rely on, or even consider using, images which are months old in order to plan an invasion? One would be better off using real estate advertisements if one was that lazy.
I will rest peacefully in my bed at night secure in the knowledge that Google's 'Street View' will in no way impinge on my general security. I might even dismantle the machine gun and fill in the emplacement, remove the bars from the windows and cut the power to my electric fence. The baseball bat behind the front door and the .38 Smith and Wesson under the pillow I will keep.