A floating crane removing obstacle is seen from east breakwater at the crippled Fukushima Daiichi nuclear plant in Fukushima prefecture, in this handout picture taken on January 14, 2012. The operators of Japan's quake-crippled nuclear power plant looked inside one of the ruined reactors for the first time on Thursday using an endoscope. Tokyo Electric Power Co, which is trying to halt radiation leaks from the Fukushima Daiichi nuclear plant destroyed in the March 11 earthquake and tsunami, said the endoscope, just 8.5 mm in diameter, would give a better idea of what's really happening inside. Mandatory credit. Picture taken January 14, 2012. REUTERS/Tokyo Electric Power Co./Handout (JAPAN - Tags: DISASTER BUSINESS ENVIRONMENT) FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. IT IS DISTRIBUTED, EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS. MANDATORY CREDIT