U.S. government debt prices fell Friday in light post-Thanksgiving trading and a reduction in safe haven demand for bonds as Wall Street stocks rallied on hopes lenders would soon release more cash to debt-laden Greece. The cease-fire between Israelis and Palestinians in Gaza also soothed some investors. "Some of the safe haven trades are coming out of the bond market," said Larry Milstein, head of U.S. government and agency trading at R.W.