Five years on, cleanup of Fukushima's reactors remains a distant goal
Removal of nuclear fuel from power plant that suffered triple meltdown following 2011 tsunami could take 40 years or more
A Tokyo Electric Power Company employee, wearing a protective suit and a mask, walks in front of the No 1 reactor building at the Fukushima Daiichi nuclear power plant. Photograph: Toru Hanai/Associated Press