Interests on US debt fell this Wednesday after a robust auction of almost $40 billion in 10-year bonds, which after having renewed 2002 ceilings precisely at this maturity hours earlier. The 10-year bonds of the US Treasury, the benchmark for the stock market, reached 5.365% during the Wednesday session and in the antechamber of an auction seen as critical by the markets, thus reaching April 2002 ceilings. Also in longer maturities there were si…