Tsunami Wreckage and the Threat to Shipping

Houses, cars, and tractor-trailers washed out to sea by the 28-foot tsunami in March are clogging shipping lanes off Japan, posing a bigger challenge to commercial shipping lines than the leaking Fukushima Dai-Ichi nuclear plant. As of Apr. 4, Japan's coast guard was advising ships to stay 90 nautical miles (167 km) off the worst-hit stretch of coast.

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