American politicians will have to develop the courage to follow what is taught in all American public-policy schools: that there are good taxes and bad taxes.
美国的政客们将不得不鼓起勇气，去遵循所有美国公共政策学校所教授的东西：税收也是有好有坏的。
2
That's what we've learned, and publicpolicy should recognize that.
这就是我们所学到的，并且公共政策应该认识到这一点。
3
Currently there's no publicpolicy on using assisted migration to help species survive climate change.