For the ultimate safety with your bond investments, you can turn to the U.S. government, the most reliable borrower in the world. The U.S. government has never defaulted on a loan, and it would take a mighty big catastrophe before the U.S. Treasury could collapse. To put it simply, you’ll never have to worry about the U.S. not paying you back if you buy some of its bonds. Since U.S. government bonds are among the safest in world, they almost always have lower yiel......