...MIKE SHUSTER: Earlier this summer, the government of Iran and the International Atomic Energy Agency worked out a plan and timetable for resolving a set of questions the agency has had for quite sometime about Iran's past nuclear activities. Those questions focus on small-scale experiments with plutonium, the gas centrifuges Iran acquired to enrich uranium, working with uranium metal, and other issues.

In its report today, the IAEA said its questions about Iran's plutonium experiments have been answered. So the IAEA considers this particular matter resolved. This is an example of improved cooperation from Iran, the IAEA said. Jeffrey Lewis, an expert on nuclear nonproliferation at the New America Foundation, believes this is a step forward for Iran and the IAEA.

Dr. JEFFREY LEWIS (Director, Nuclear Strategy and Nonproliferation Initiative, New American Foundation): That's really what need the IAEA for, is to give us a very clear picture of the scope of Iran's activities over the past 20 years...

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