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Cornel Feruta, acting director general of the International Atomic Energy Agency (IAEA), gives a speech at the 63rd IAEA General Conference in Vienna, Austria, Sept. 16, 2019. The 63rd International Atomic Energy Agency (IAEA) General Conference started amid heightened tensions over the Iran nuclear deal at the Vienna International Centre (VIC) here on Monday. (Xinhua/Guo Chen)