The CEO and chief economist of the groundbreaking real estate website explain how the rules have changed.
Before last Friday, Minamisanriku was a lively port at the heart of the mountainous Miyagi prefecture, with a population of about 17,000. But the earthquake struck just 80km from the town, and the resulting tsunami devastated the town, leaving much of the population unaccounted for.
We get the latest from the BBC’s Rachel Harvey.
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