Dozens of internal United Nations audits of the troubled oil-for-food program in Iraq were routinely shown only to the U.N. official now at the center of an international scandal over kickbacks from the regime of Saddam Hussein, a congressional investigator said yesterday. Joseph A. Christoff, director of international affairs and trade at the General Accounting Office, told a House hearing that U.N. auditors had refused to release the internal audits to GAO investigators probing the scandal that poured an estimated $10.1 billion from secret oil sales and inflated contracts into Saddam's coffers under the U.N. program. "We sure asked for...