This aerial photo shows the damaged Fukushima Nuclear power plant, sitting in coastal towns of Okuma and Futaba, northeastern Japan, Feb. 11, 2024. (Kyodo News via AP)

A device to remove debris from a reactor at the damaged Fukushima Nuclear power plant demonstrates to pinch a stone, as revealed in Kobe, western Japan, May 28, 2024. (Kyodo News via AP)

A device to remove debris from a reactor at the damaged Fukushima Nuclear power plant is revealed in Kobe, western Japan, May 28, 2024. (Kyodo News via AP)

This photo provided by the Tokyo Electric Power Company Holdings shows what they call a "Telesco-style" extendable pipe robot on July 10, 2024. (TEPCO via AP)