East Japan Railway Co. (JR East) will start a bus service on Jan. 31 that runs through an area with high radiation levels near the stricken Fukushima No. 1 nuclear plant, officials said Jan. 22.East Japan Railway Co. (JR East) will start a bus service on Jan. 31 that runs through an area with high radiation levels near the stricken Fukushima No. 1 nuclear plant, officials said Jan. 22.