On this edition of Wall Street Week, Lori Calvasina, RBC Capital Markets Head of US Equity Strategy & Julian Salisbury, Goldman Sachs Asset & Wealth Management CIO on the week that was in the markets. Ruchir Sharma, Rockefeller International Chairman takes us through the cost of government intervention. Tim Massad, Former CFTC Chairman discusses whether we should've seen the banking crisis coming. And Former US Treasury Secretary Lawrence H. Summers warns that its too early for an all-clear on US financial turmoil.