b'We are raiding the Audio Long Read archives to bring you some classic pieces from years past, with new introductions from the authors. This week, from 2017: In 2011 a tsunami engulfed Japan\\u2019s north-east coast. More than 18,000 people were killed. Six years later, in one community, survivors are still tormented by a catastrophic split-second decision. Help support our independent journalism at theguardian.com/longreadpod'