Japan restars a reactor at the world's largest nuclear plant nearly 15 years after the Fukushima disaster.

A return to nuclear power is at the heart of Japan’s energy policy but, in the wake of the 2011 disaster, residents’ fears about tsunamis, earthquakes and evacuation plans remain

Japan's Kashiwazaki-Kariwa nuclear plant, the world's largest, is set to restart one reactor on January 21, 2026.