Director General of the International Atomic Energy Agency (IAEA) Rafael Mariano Grossi, right, walks in Kyiv, Ukraine, early Wednesday, Aug. 31, 2022. The U.N. nuclear watchdog team set off on an urgent mission to safeguard the Russian-occupied Zaporizhzhia atomic power plant at the heart of fighting in Ukraine, a long-awaited trip the world hopes will help avoid a radioactive catastrophe. (AP Photo/Efrem Lukatsky)
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