Japan builds new tsunami walls

Huge concrete walls are being built along parts of Japan's coast to protect it from tsunamis.

    Seven years ago, massive waves crashed into coastal cities in Japan, killing over 20,000 people.

    Now the government is building huge concrete walls along parts of Japan's coast to protect it from tsunamis.

    But some say the new barriers are too high and could have an effect on tourism.

    Al Jazeera's Rob Matheson reports.


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