In 2011, an accident of the nuclear power plant happened in Fukushima. That reason is tsunami of earthquake. Then, the accident became serious, and it affected the world. Before accident of Fukushima, the nuclear power plant was said to be security, but the nuclear power plant understood that It was in danger in the accident. People want to quit made of energy by the nuclear power plant, because It is danger. However, it is hard to find other energy, because the cost is high and cannot stable supply. Thus, supply of the energy is a big problem in Japan.

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