I read George Orwell at an impressionable age, and I'm above average in my worry over an ever nosier Big Brother, with cameras everywhere. I like anonymity so much that when I'm out doing errands in baggy pants and mud-caked garden clogs, I stumble around without my glasses so that I'm harder to recognize. But I assume there's no transaction that I carry out, from buying floss at the drugstore to getting cash from an ATM, that's not videotaped. Last week the city of Tampa, Fla., unveiled 36 cameras in its entertainment district downtown with new software to scan the crowds...
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