Saddam Hussein's £96 million bunker under one of his Baghdad palaces has three-tonne doors, 4.5m thick walls and 5.4m thick reinforced-concrete ceilings, according to the German security consultant who planned it, Karl Esser. It can house 50 people, has a 180m escape tunnel to the River Tigris and can withstand a Hiroshima-sized nuclear bomb exploding 230m away.
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