The current crisis in the world is caused, as they say, by the new instruments created by bankers to make more profits. The new and innovative instruments like sub-prime lending, Collateralized Debt Obligations (CDO) and likes were introduced to encourage more and more lending. And this led us to this point.
Now every experts see the problem in these instruments and blame regulators of the time for not having checked on them when these were introduced in the market.
Why not regulators make it a point that they keep a close eye on the market and see if any new types of instruments are being introduced by market players like banks, PE players, hedge players and investment bankers. When this happens the regulators should not clamp down upon them immediately instead get some of the experts together and discuss pros and cons of them threadbare. This can help unearth any shortcoming if they have and accordingly regulations can be introduced so that we do not come to this point. I know it's easy on my part to say in the hindsight.