那个白色恐怖时代，改变了他们的生活。

It was the threat of terror that shaped their lives.

我们并不真的了解那段历史。但是对于这个国家的黑人来说，那是个白色恐怖时代。

We don't really know very much about it. But for African-Americans in this country, that was an era defined by terror.