The Fed's in uncharted waters with this mortgage bond buying.
Krugman's views carry a lot of weight.
Bernanke and others from MIT
(Bank of England Governor Mervyn King, European Central Bank President Mario Draghi)
may have disused this policy for years.
That being said,
there's risk if the economy recovers and bond rates go up,
there's risk if National debt is down graded and rates up.
It's in the derivatives market. The same systemic failure.
QE 3 (4) will work until it doesn't;
A run on the banks occurs when people get jittery.
It's not bonds or debt although vast amounts of money have accumulated...........
It's trust or lack of.
“To be yourself in a world that is constantly trying to make
you something else is the greatest accomplishment.” ---Ralph
Waldo Emerson