Along a path at the edge of a weed-ridden farm in Cambodia, a man listens carefully as he sweeps his metal detector over the ground. When the detector's squealing tone signals the presence of buried metal, the man stops, repeats the sweep, and carefully marks the spot. Soon a second worker follows and lies on the ground, his head an arm's length from the marked spot, gently probing the ground with a stick. Both men are experienced deminers, one a retired British Army veteran far from home, the other a local resident trained to find mines. Both know well the cost of error: sudden serious injury or death.

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