Ukrainian National Guard, Armed Forces, special operations units exercise as they simulate a crisis situation in an urban settlement, in the abandoned city of Pripyat near the Chernobyl Nuclear Power Plant, Ukraine, Feb. 4, 2022. When fighting from Russia’s invasion of Ukraine resulted in power cuts to the critical cooling system at the closed Chernobyl nuclear power plant, some feared that spent nuclear fuel would overheat. But nuclear experts say there’s no imminent danger because time and physics are on safety's side. (AP Photo/Mykola Tymchenko) **FILE**
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