I am awed by surveillance technology. A friend sent me an email, one of those that had been forwarded a few dozen times.
"This is a photo from the 2009 Inauguration, In which you can see IN FOCUS the face of each individual in the crowd !!! You can scan, double click and zoom to any section of the crowd. . . wait a few seconds. . . and the focus adjusts. The picture was taken with a robotic camera at 1,474 megapixel. (295 times the standard 5 megapixel camera)"
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I used to read Robert Heinlein extensively. I think privacy is well and truly a thing of the past.