David Rosenberg warns of potential 20% S&P 500 drop due to Fed 'accident'.

Stock market strategist David Rosenberg warns that a misstep by the Federal Reserve could lead to a 20% drop in the S&P 500. He suggests investors protect their money by investing in Treasuries, cash, and gold when a recession hits, as credit tightens, jobs are threatened, and bond yields and stocks fall. Rosenberg believes that a recession is imminent and that deflation, job losses, and a significant hit to the stock market are likely to follow.