San Diego’s massive, 7-year experiment with facial recognition technology appears to be a flop – “Since 2012, the city’s law enforcement agencies have compiled over 65,000 face scans and tried to match them against a massive mugshot database. But it’s almost completely unclear how effective the initiative was, with one spokesperson saying they’re unaware of a single arrest or prosecution that stemmed from the program…Now, after the California legislature instituted a three-year ban on police use of mobile facial recognition technology, one of the nation’s most overhyped and least well-understood policing tools has been switched off…”