From The New York Times:
How Facial Recognition Makes You Safer
Used properly, the software effectively identifies crime suspects without violating rights.
That’s also how they caught the Boston Marathon bombers.
All technologies can be dangerous or beneficial depending on how they are used.
Thank you, Francoise. This is a good point.
If the SF law had been in effect in Boston, the whole country might have known the identity of the bombers, but the Boston law enforcement would have been prohibited from making any use of the evidence.