The head of Japan's wrecked Fukushima nuclear plant says details of the damage inside its reactors are only beginning to be known 12 years after it was hit by a massive earthquake and tsunami, making it difficult to foresee when or how its decommissioning will be completed.
The most pressing immediate task is to safely start releasing large amounts of treated but still radioactive water from the plant into sea, Akira Ono said in an interview with The Associated Press.
