watch the financial cr**** had not so much the words are because of a sudden accidental events(times loan cr****),it ** better to say that the united states economy in the high growth rates,low inflation and low unemployment rate of the platform running on the 5 years phases of economic growth,to the neglect of investment r**ks which led to the outbreak of the cr****. in fact,personally feel that th** ** inevitable. first of all because of"sub-loan cr****",the specific background do not know if you clearly do not know,i generally under the introduction: