Moves to regulate this space are afoot, but Wall Street continues to turn to these stealth exchanges to cover their activities from the general public.

规范这一领域的各种措施正在实施当中，但华尔街继续选择利用这些秘密的交易所，使自身活动不为普通大众所知。

So, how different is what Wall Street in general did from the Madoff affair?

那么，从总体上讲，华尔街到底同马多夫有多少不同呢？

In general he favours light regulation, but he now agrees with Mr Obama that Wall Street needs firmer oversight.

总体来说他支持削减管制，但现在他和奥巴马都认为应对华尔街加强监管。