Former Goldman Sachs CEO Lloyd Blankfein talks Wall Street crises, past and future

In his new memoir, "Streetwise," Lloyd Blankfein, the former CEO of Goldman Sachs, writes about a life that stretched from the projects of New York City to the pinnacle of Wall Street. He talks with Jo Ling Kent about his unlikely rise to the top of the C-Suite; and about accountability for the "calamitous" 2007-2008 financial crisis, as well as the prospects of new economic turmoil.