Protect your portfolio with defense and oil By: MarketWatch March 01, 2010 at 00:01 AM EST Suddenly, the word “nuclear” has mushroomed, writes Jim Lowell. Read More >> Related Stocks: Boeing Co Genl Dynamics L-3 Communications Holdings Lockheed Martin Northrop Grumman Precision Castparts Raytheon Co Rockwell Collins US Aerospace & Defense Ishares ETF Ultra Health Care 2X ETF United States Oil Fund United Technologies