We know the Bernanke lead Fed is willing to be extremely aggressive. But as we saw in 2010 the hurdle is high for more Quantitative Easing. We need evidence of A) a double-dip B) a stock market correction of at least 15 or 20% and C) the real prospect of deflation. But if headline inflation is running at 4% and other central banks are tightening QE3 will be a very tough sell.