Workers are checked for radiation at the Tokyo Electric Power Corp's (TEPCO) tsunami-crippled Fukushima Daiichi nuclear power plant in Fukushima prefecture November 7, 2013. Japan approved on October 30, 2013 a plan by TEPCO to extract thousands of nuclear fuel rods from the fuel pool of the No. 4 reactor of the Fukushima Daiichi plant. Containing radiation equivalent to 14,000 times the amount released in the atomic bomb attack on Hiroshima 68 years ago, more than 1,300 used fuel rod assemblies packed tightly together need to be removed from a building that is vulnerable to collapse, should another large earthquake hit the area. REUTERS/Kimimasa Mayama/Pool (JAPAN - Tags: DISASTER ENERGY)