Mike Weightman (2nd L), Britain's Chief Inspector of Nuclear Installations and the head of a group of international atomic experts, is greeted by Masao Yoshida, plant chief of the crippled Tokyo Electric Power Co.(TEPCO)'s Fukushima Daiichi nuclear power plant, in Fukushima Prefecture, in this handout photo taken and released by TEPCO on May 27, 2011. [Xinhua]