The Federal Reserve's announcement that it will sell $400 billion of short-term Treasury securities and buy $400 billion of longer-term government bonds as a way of locking low interest rates and stimulating the economy is a good idea. Unfortunately, it is far from sufficient.
The government should be borrowing at least a trillion dollars at today's very low interest rates and investing the money in infrastructure projects as a way of jump-starting a catatonic private economy. But that idea, of course, is off the table. Republicans would block it, and not even President Obama, despite his newly assertive progressive self, is proposing it.
So financial markets took the Fed's announcement not as a sign that help is on the way but as a sign of just how bad things are.