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Fukushima disaster tests mettle of local robot makers (3:05) 

Dec. 28 - Despite being recognized as a world leader in robot design, Japan is playing catch-up to develop robots capable of dealing with the crippled nuclear power plant in Fukushima. Authorities have has to rely on American made machines to assess the damage inside the reactors. But now the country's big three manufacturers are building their own versions of durable, remote-controlled robots for hazardous environments. Ben Gruber reports. ( Transcript )

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