Pardon my lack of expertise. I am not totally new to the investment world, but am quite new to the exploration of fixed income. I have especially enjoyed reading the essays by Robert B. Gordon and his strategy for building a stable growth portfolio. In at least of few of his articles, he lists US Treasury bonds as major asset class to include in a portfolio. If you would compare the returns on savings bond rates, a 5 year bond would return about 2.6%. Alternately you could purchase a 5 year CD (FDIC insured) through someone like ING that would return 4%. Using the risk vs return philosophy, I can't see any additional risk or other disadvantages of any significance that would relate to the CD investment, as it is insured by the same entity issuing the lower interest bonds. Am I missing something?