There has been an on-going debate in Japan on the best way to obtain a safe and affordable energy supply for the island nation. The nuclear option suffered a set back in March, 2011, when a massive earthquake and devastating tsunami caused a meltdown in reactors at Japan's main Fukushima-1 nuclear power plant. But nuclear power boosters say expensive imported fossil fuels for conventional plants will hurt the nation's productivity. More from correspondent Steve Herman in Tsuruga, Japan where VOA was given an unprecedented look inside the country's only fast breeder reactor facility.