Originally Posted by
Wollstonecraft
Frankly, this seems pretty dumb and yet another waste of taxpayer money on some gee-whiz gizmo instead of actual investments in law enforcement. The very first comment on the Nature article indicates exactly what someone with real malintent would do when facing this system (other than the obvious, just walk away.) i.e. How would the system detect someone taking beta-blockers? (which suppress the heart rate and physical symptoms of nervousness - commonly taken by classical musicians before an audition and many others)
Whoops.
Honestly, I think this program would be quite worthless in detecting someone that has already made peace with their god and/or themselves and is walking towards their death. Psychopaths express no feelings of guilt or fear and are quite happy to harm others without a second thought.