First internal investigation of Fukushima Daiichi Unit 2 reactor.

The Fukushima Daiichi Nuclear Power Plant is a disabled nuclear power facility located in Japan’s Fukushima Prefecture. It was severely damaged during the 2011 Tōhoku earthquake and tsunami, leading to meltdowns in three reactors and a major release of radiation, making it the world’s most significant nuclear disaster since Chernobyl. The site is now in a decades-long decommissioning phase, with ongoing work to manage contaminated water and radioactive materials.