COLUMN-The doomsday portfolio: How to invest for default By: Reuters: Company News October 11, 2013 at 07:59 AM EDT NEW YORK, Oct 11 (Reuters) - What should investors do if they think their portfolio is facing doomsday? Read More >> Related Stocks: SPDR GOLD T.Rowe Price Group Ultrashort Lehman 20 Year Treasury -2X ETF Ultrashort Lehman 7-10 Year Treasury -2X ETF