What's the meaning of "And this because" in the following text?
And this because, Terasaki added, “there is both a practical and moral imperative to rid the world of those apocalyptic weapons."
It’s an instance of ellipsis. The reader has to supply the verb is after this (which refers to Terasaki’s preceding statement) to complete the sentence. This is not carelessness or an error, but a stylistic device. Whether or not it is effective is for each reader to judge.