Krugman on the central bank action: Huh?

I am, I have to say, somewhat mystified. Of course the Fed will make dollar liquidity available to other central banks as needed; that was never in question, because Bernanke doesn’t want to be the man who destroyed the world to save a few pennies. And reducing the interest rate on those loans seems to me to make virtually no difference; it was a trivial charge anyway.

So this looks to me like a non-event. Yet markets went wild. Are they taking this as a signal that substantive actions — like the ECB finally doing what has to be done — are just around the corner? Are they misunderstanding the policy? Was this cheap talk that nonetheless moved us to the good equilibrium? (If so, not enough: Italian bonds still at more than 7 percent).
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