If there is something it is being in clear within all the confusion that has caused the crisis in the market of mortgages prevails American, and that quickly was scattered in the rest of international the financial system, it is that the worse thing of this crisis has not happened absolutely. After the explosion of the crisis and the announcement of great losses and falls of organizations of weight during the first months of beginning of the crisis, many thought that the worse thing of the same already had happened. Nevertheless, the episodes of crisis continued following one another in the beginning of this year and to point it was to hurt seriously to main insuring of bonds affected by the crisis, MBIA (NYSE: MBI), Ambac Financial Group (NYSE: ABK) and FGIC, and on the verge of making fall to the two main American hypothecating companies, Fannie Mae (NYSE: FNM) and Freddie Mac (NYSE: FRE), which had to be rescued by the government of the EE.UU. The rescue of Fannie Mae and Freddie Mac brought to light that the situation in the American financial system perhaps continued being as serious as at the beginning of this crisis. That is at least, which interpreted the market when announcing the greater rescue realised in the history of the EE.UU., which can imply a cost for the Americans superior to the US$ 200,000 million. Immediately after to know the rescue these hypothecating companies, Lehman Brothers (NYSE: LEH), the fourth greater investment bank of Wall s$street and with 158 years of existence, confirmed that the worse thing of the crisis had still not happened. The organization presented/displayed numbers in red by US$ 6,000 million and put in doubt its survival. The fear took to that the actions of Lehman Brothers quoted in the closing of the week last in US$ 3.80, when in the month of February they were pleased by them around US$ 66.