NEW YORK: Most US Treasuries prices were little changed on Tuesday in light, choppy trading, as investors awaited the outcome of the Federal Reserve's two-day meeting for signs whether the US central bank might scale back its current stimulus program.The Fed's policy statement, to be released after the close of the meeting on Wednesday afternoon, could affirm remarks by Chairman Ben Bernanke last month that the US central bank may decide to trim the amount of bond purchases in the next few meetings if the economic recovery maintains momentum."It's very complicated for the Fed," said Guy LeBas, chief fixed income strategist at Janney Montgomery Scott in Philadelphia. "On the one hand their policies aren't having a huge impact on economic growth going forward, on the other hand they need to maintain the ability to act in case deflation does occur."The Fed's $85 billion monthly purchases of Treasuries and mortgage-backed securities ...