BY TAKASHI SUGIMOTO STAFF WRITER
Workers remove an unused nuclear fuel assembly from the storage pool of the No. 4 reactor at the Fukushima No. 1 nuclear power plant. (Provided by TEPCO)
A little more than 500 days after the accident at the Fukushima No. 1 nuclear plant threatened to force the evacuation of the entire Tokyo metropolitan area, the situation is certainly much improved.