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improvised, often with great ingenuity, from simple explosives with crafty triggers, such as those made from slit bamboo and nails or metal foil.In the past decade, however, mass production of anti-personnel mines has lowered the unit price to only a few pounds sterling, and even the poorest nations or groups of insurgents can import tens of thousands each year.Over 1 10
S. Capewell (Sat,) studied this question.