In autumn 2024, Russia launched massive aerial assaults on Ukraine, pounding its energy system and raising fears about the safety of its nuclear power plants . Several reactors were disconnected from the grid. One shut down entirely. "It wasn't that we were scared," says Shaun Burnie, recalling that night. "It was that we were terrified." For Burnie, a Greenpeace veteran nuclear specialist who has worked in some of the most radioactive places  on earth, the danger lay in what could have