I'd argue that we don't have any good ways of dealing with abuse/misuse, and that's precisely the problem with such a system.
And let's not forget the "verified false positives" are counted in lives ruined/ended. Could we do it? Yeah, no one's denying that. But if we throw out ethics in the name of technological progress, we could do a lot of great things.
There's not really a deterministic line, beyond which a person is "certainly" a threat. At the end of the day, a person has to decide what is and isn't a threat, all the computer can do is help that decision along. A person pulls the trigger, and as we all know, people can really suck sometimes.
And let's not forget the "verified false positives" are counted in lives ruined/ended. Could we do it? Yeah, no one's denying that. But if we throw out ethics in the name of technological progress, we could do a lot of great things.
There's not really a deterministic line, beyond which a person is "certainly" a threat. At the end of the day, a person has to decide what is and isn't a threat, all the computer can do is help that decision along. A person pulls the trigger, and as we all know, people can really suck sometimes.