NEW YORK (TheStreet) -- Twenty-five-year-old bond traders need to be reminded why the Federal Reserve started its zero interest rate policy in December 2008. A lot has changed since they were freshmen in college. The recent bond rally and stock bust over the past several weeks saw the 10-year Treasury note yield touching 1.87%, iShares 7-10 Year Treasury Bond ETF or iShares 20+ Year Treasury Bond ETFa , and the 2-year Treasury note, iPath US Treasury 2-year Bear ETN or iPath US Treasury 2-year Bull ETNa , yielding 0.25% on Wednesday.