I think we should just let the mess cleans by itself...bad/weak bank will be bought back by better/stronger bank or equity will be injected in their capital base by say some Chinese or middle eastern sovereign funds...
The irony (as a french) is that the US are becoming more french than the french (far more nationalization this year in the US than in France)...soon they will learn how to work only 35H a week and drink coffee - eat croissant at a nearby cafe!