As interest rates continue to hover near zero percent, bond yields have fallen to historic lows. As a result, government bonds no longer offer the portfolio protection and the reliable source of income that has made them so attractive to investors. Instead, bond investors are facing lower expected returns and increased risk. Is this just a temporary setback, or has the time come for investors to look elsewhere for reliable income investments? In their quarterly letter, GMO analyzes the bond market and shares ideas for navigating low interest rates.