newscientist.com
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The city’s police department has released images of three other people it is seeking in connection with the snowball fight. Police Commissioner Jessica Tisch has called the treatment of officers at the fight “disgraceful” and “criminal.”
不过他也坦承，「训练之后仍有大量工作要做」。稳定性、成本、安全合规，一堆问题还没解决，离真正可用还有距离。