News Wrap: Cain Reassesses 2012 Run After Woman Claims Long-Term Affair

Listen to the Audio HARI SREENIVASAN: Standard & Poor's downgraded its ratings today for the largest banks in the U.S. by at least one notch. They included Citigroup, Goldman Sachs, J.P. Morgan Chase, Morgan Stanley and Wells Fargo. The ratings service said the shift reflects new criteria that better take into account shifts in the worldwide financial industry.

Home prices are falling again