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Published on Friday, December 2, 2011 by The Guardian/UK
http://www.guardian.co.uk/world/2011/dec/02/fukushima-fuel-rods-completely-melted
One of the plant's nuclear reactors was close to being breached as fuel rods bore through its concrete floor, says Tepco
by Justin McCurry in Tokyo
Fuel rods inside one of the reactors at the Fukushima Daiichi nuclear power plant may have completely melted and bored most of the way through a concrete floor, the reactor's last line of defence before its steel outer casing, the plant's operator said.
Tokyo Electric Power (Tepco) said in a report that fuel inside reactor No 1 appeared to have dropped through its inner pressure vessel and into the outer containment vessel, indicating that the accident was more severe than first thought.
The revelation that the plant may have narrowly averted a disastrous "China syndrome" scenario comes days after reports that the company had dismissed a 2008 warning that the plant was inadequately prepared to resist a tsunami.