Restrain the financial innovators?

Mostly, we agree that financial innovations, especially those driven by technology, such as ATM and PayPal are good. However, we are divided when it comes to certain types of financial innovations such as those relating to Securities. The financial/economic turmoil in the last 2 years has pushed many more of us to think that creativity in finance should be restrained. As we know, Governments are now trying to regulate everything "finance."

Should we hit the brakes on financial innovation? Or should we, as Megan McArdle (theAtlantic.om) says, "focus on developing the regulatory capacity to sort out the good innovations from the bad?"