translation.en: But according to a committee of academics convened by the National Academy of Sciences last year, the relationship between our historically high incarceration rates and our low crime rate is pretty shaky.
translation.zh: 但是根据一个由国家科学院去年召开的 学术会议的测算 我们历史上高服刑率 和我们的低犯罪率的关系并不十分牢靠