Regulation: Washington is quietly preparing a hostile takeover of Wall Street with a new bill that would put regulators in control of managing asset prices.

While all eyes are fixed on the cobra poised to strike the health care industry, a python is wending its way through Hill banking panels that would squeeze the life from the whole economy.

By Christmas, House Financial Services Committee Chairman Barney Frank hopes to pass legislation that would create an uber-regulatory body called the Financial Services Oversight Council.

It would give the Treasury secretary power to pick which large finance firms are "systemically critical," or too big to fail. He'd have the final call when the government steps in to save or unwind a troubled firm.

The bill would...