Tonga still recovering one year after volcanic eruption

A massive underwater volcano erupted one year ago near the island nation of Tonga in the Pacific. Tonga was blanketed in ash and acid rain, and tsunami waves threatened countries across the region. It took a month to restore communications after a fiber-optic cable was severed. But even after that, recovery has been slow. Ashley Westerman reports on the human and environmental destruction wrought by the volcano.

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