US: Double Dip?

It is getting less ambiguous: A Double Dip for the US economy. Across the Atlantic, the picture does not look pretty at all given that the Germans do not want to play ball. For now investors chose to ignore the dark clouds gathering. There has been talk of quantitative easing but I don't understand. Wouldn't this just add to a pool of trapped liquidity? What is needed is either biting the bullet (forget it) or more fiscal stimulus. Question is where is the money going to come from? I shall be watching for more wisdom on this.