It's an inconvenience, but the thing that makes me most averse to that system is that it presumes guilt. Here in the US, cops are not allowed (though enforcemen

It's an inconvenience, but the thing that makes me most averse to that system is that it presumes guilt. Here in the US, cops are not allowed (though enforcement is lax) to detain you for any reason without reasonable suspicion that you've committed a crime.