"(...) an experiment taking place in dozens of police departments across the country, one in which the authorities have turned to complex computer algorithms to try to pinpoint the people most likely to be involved in future violent crimes — as either predator or prey."<p>Interesting (eerie) parallel to the intro in the TV series "Person of Interest", although supposedly this system doesn't get its data from the NSA (as with parallel construction etc), but rather the information comes from more-or-less open data (legal surveillance etc) -- and of course it isn't vigilantes but police that will, 'victim or perpetrator, if your number's up (...) find you':<p>"You are being watched. The government has a secret system: a machine that spies on you every hour of every day. I know, because I built it. I designed the machine to detect acts of terror, but it sees everything. Violent crimes involving ordinary people; people like you. Crimes the government considered 'irrelevant'. They wouldn't act, so I decided I would. But I needed a partner, someone with the skills to intervene. Hunted by the authorities, we work in secret. You'll never find us, but victim or perpetrator, if your number's up... we'll find you".