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Economy

Fukushima ice wall yields limited benefit for its cost

$322m barrier is less effective than lower-tech measures in fighting contamination

Tepco has surrounded the reactors at its Fukushima Daiichi plant with a wall of frozen earth.

TOKYO -- Tokyo Electric Power Co. Holdings faces the question of whether the so-called frozen soil wall built to contain contamination at its damaged Fukushima Daiichi nuclear power plant justifies its high cost.

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