Afraid of Kim's nukes? Build a bunker, South Korean professor says

If North Korea unleashes a nuclear attack on the South, architecture professor Lee Tae-goo has a plan: he'll retreat to his purpose-built bunker and stay underground for at least two weeks to avoid radiation poisoning.

With thick concrete walls, steel-reinforced doors and an air purification system, Lee says his shelter, buried under a metre (three feet) of earth, could keep him safe from a nuclear disaster and withstand a direct hit from a conventional missile.

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