Ferry probe eyes structural changes

The passenger ferry Sewol sinks off the coast of Jindo Island on April 16, 2014 in Jindo-gun, South Korea.
The passenger ferry Sewol sinks off the coast of Jindo Island on April 16, 2014 in Jindo-gun, South Korea.

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    Ferry probe eyes structural changes

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Questions are being raised about recent structural changes made to the ferry that sank off South Korea. Will Ripley reports.