The knottiest problem will be what to do with those who cannot be prosecuted but cannot sensibly be freed—and are still dangerous.

最棘手的问题将是如何处置那些不能被起诉，但危险度很高不能轻易释放的那些人。

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Public Advocate Bill de Blasio, said the mayor is "out of touch" and didn't outline any bold ideas to tackle the city's knottiest problems.

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