Andrew Ross Sorkin

Bringing back something akin to Glass-Steagall would clearly help limit risk in the system. And that's a very good and worthy goal. Letting banks sell securities and insurance products and services allowed them to grow too big too fast and fueled a culture that put profit and pay over prudence.

Leverage is great when it works, and when it doesn't work, it creates a lot of issues. So I think if you limit the amount of leverage that people can borrow, or that banks can borrow, I think you'll find that you'll have a lot less issues going forward.