Guardian: The operator of Japans ruined Fukushima Daiichi nuclear power plant was aware of the need to improve the facilitys defences against tsunami more than two years before the March 2011 disaster but failed to take action, according to an internal company document.
The revelation casts doubt on claims by Tokyo Electric Power (Tepco) that it had done everything possible to protect the plant, which suffered a triple meltdown after being struck by a towering tsunami.
The nuclear accident, the worlds...