请教题库中一题

The followling is an excerpt from a memo written by the head of a governmental department

Neither stronger ethics regualations nor stronger enforcement mechanisms are necessary to ensure ethical behavior by companies doing business with this department. We already have a code of ethics that companies doing business with this department are urged to abide by, and virtually all of these companies have agreed to follow it. We also know that the code is relevant to the current business envirorment because it was approved within the last year, and in direct response to specific violations committed by companies with which we were then working-- not in abstract anticipation of potential violations, as so many such codes are.

discuss how well reasoned..etc

这题实在不知道如何下手. 他的论点是Neither stronger ethics regualations nor stronger enforcement mechanisms are necessary to ensure ethical behavior by companies doing business with this department. 但为什么后面说的跟前面不相干.这可以是一个切入点.但是我highlight部分又是什么意思呢?

请在看球之余多多指教.