The assault on the United Nations is escalating. A Senate subcommittee has raised the estimate of how many illegal billions Saddam Hussein was able to amass under the noses of monitors hired by the United Nations. Several other Congressional committees are exploring the scandal. Norm Coleman, the subcommittee's Republican chairman, has joined a gaggle of conservatives calling for the resignation of Secretary General Kofi Annan. Mr. Annan, who drew the wrath of Republican Washington for opposing President Bush's war in Iraq, will have to face the judgment of United Nations members on how much responsibility he bears. But before the...