Inside Japan’s Fukushima Nuclear Plant

On March 16, Tokyo Electric Power Co (TEPCO), the owner of the plant, released this photo of the damaged No. 3 (left), left, and No. 4 reactors. The No. 3 reactor suffered damage on March 14, when overheated fuel caused an explosion. No. 4 was not in operation when the quake hit, but an explosion on March 15 damaged the building that houses it.