With the debate about US financial reform finally, it appears, about to end, should we all feel safer and more confident that a crisis will not recur? After all, the root causes of this crisis (including derivatives) have been identified and addressed. Measures have been taken to prevent system-wide bail-outs.

We agree wholeheartedly with the need for financial reform and support many of the derivatives provisions in the bill. But have we addressed what actually happened in the financial crisis? Or have we left the real culprit lurking, ready to resurface and create more instability in the financial system?

It's clear today – and it was clear three years ago – that the culprit is real estate exposure. Bad lending, driven by poor underwriting standards and awful risk management, created and drove the crisis.