Chicago Tribune's Bill Barnhart writes "Bull rush on for snail's pace return" describing the lobbying debate over whether stable value funds and money market funds should be excluded from Labor Department guidelines on default investment choices in 401k plans. The article says, "Mutual funds want stable-value products, including their own money-market mutual funds, excluded as a stand-alone option. They cite a wealth of research proving that low-yielding, fixed-income investments rob employees of future retirement income easily available through investing in stocks or a combination of stocks and fixed-income investments.