...Last month we learned that U.N. Secretary General Kofi Annan may have been aware that Swiss inspections company Cotecna was bidding for an Oil for Food contract it eventually won later that year.... Mr. Annan has denied having any prior knowledge of the Cotecna bid in testimony to Paul Volcker's committee investigating Oil for Food. But if the substance of the Cotecna memo is accurate -- the company confirms its authenticity -- it means the Secretary General may have misled investigators.... Then there is the continuing investigation of Benon Sevan, the senior U.N. bureaucrat formerly in charge of Oil for...