The plain view doctrine dates back to the 70s: https://en.wikipedia.org/wiki/Plain_view_doctrine
Context matters. At the time cameras were large and bulky. Computers were massive and extremely power hungry. The world's communication networks didn't have the bandwidth to shuttle video around in bulk.
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Context matters. At the time cameras were large and bulky. Computers were massive and extremely power hungry. The world's communication networks didn't have the bandwidth to shuttle video around in bulk.