Fukushima Unit 4 More than 1,000 fuel rod assemblies need to be removed from a building that was badly damaged following the tsunami A task of extraordinary delicacy and danger is about to begin at Japan’s Fukushima nuclear power station. Engineers are preparing to extract the first of more than 1,000 nuclear fuel rods from one of the wrecked reactor buildings. This is seen as an essential but risky step on the long road towards stabilising the site. The fuel rods are currently in a precarious state in a storage pool in Unit 4. This building was badly damaged by an explosion in March 2011 following the Great Tohoku earthquake and tsunami. Moving the rods to safety is a high priority but has only become possible after months of repair work and planning. One senior official told me: “It’s going to be very difficult but it has to happen.” […]