> While such situations are rare, they do exist, and they demonstrate the length at which we have to go to keep civic order - and very legitimately so. No, the

> While such situations are rare, they do exist, and they demonstrate the length at which we have to go to keep civic order - and very legitimately so. No, they don't. Such situations are so rare that society can tolerate their once-in-a-lifetime occurrence. A rule that applies 100% of the time is much more than 1% better than a rule that applies 99% of the time. Don't open the door even a crack, because someone will get their foot in and add more exceptions, exemptions, and caveats. And as I've said before, exceptions are a leading indicator of corruption. (Also as other comments point out, there exist plenty of effective policing techniques to solve even these hypothetically dire situations without requiring mass surveillance.)