by Cat Barton and Kang Jin-kyu Agence France Presse Jecheon, South Korea (AFP) — 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 […]