11.  U.S. stocks tumbled after Federal Reserve Chairman Alan Greenspan suggested that the central bank may take preemptive action against an increased inflation risk by raising interest rates.

12.  When we can be preemptive, we should be, because modest preemptive actions can obviate more drastic actions at a later date that could destabilize the economy.

13.  It has said this would enable preemptive action to be taken once economic imbalances or flaws in the financial system emerge.