Work to clean up irradiated areas around Fukushima nuclear plant continues . Original wide ( 12-mile ) exclusion zone around crippled facility remains . Japan only allowed access to outer parts of this zone for limited time . New radioactive leaks at plant continue to cause concern two and a half years on .
Operation to clean up irradiated areas around Fukushima nuclear plant continues . Original 20-kilometer ( 12-mile ) exclusion zone around crippled facility remains . Residents only allowed access to outer parts of this area for limited periods . New radioactive leaks at plant continue to cause concern two and a half years on .