The United Nations summit of more than 150 world leaders opened with Secretary-General Kofi Annan calling the last-minute agreement on a proposal to alter the embattled organization a "good start" but not "the sweeping and fundamental reform" needed.

U.N. Secretary-General Kofi Annan said Monday that he would ask for "clarifications" on last week's invitation from Iraq to start arms talks, saying he expects Baghdad to show some willingness to provide access to a full team of weapons inspectors.