Four thousand U.S. dollars are counted out by a banker counting currency at a bank in Westminster, Colorado November 3, 2009. REUTERS/Rick Wilking/File Photo Acquire Licensing RightsNEW YORK, Nov 21 (Reuters) - Goldman Sachs (GS.N) expects the U.S. Treasuries curve to steepen in the long term, driven by rising fiscal spending, top executives said."Fiscal spending has not abated. It's strange for us to be spending this much" when employment is high, Ashok Varadhan, Goldman's co-head of global banking and markets, said on a company podcast."It doesn't feel like we're going...