BLU-114/B "Soft-Bomb"
The BLU-114/B is a special-purpose munition for attacking electrical power infrastructure. Although very little is known about this highly classified weapon, reportedly it functions by dispensing a number of submunitions which in turn disperse large numbers of chemically treated graphite filaments which short-circuit electrical power distribution equipment such as transformers and substations. The weapon is sometimes referred to as a "soft bomb" since its effects are largely confined to the targeted electrical power facility, with minimal risk of collateral damage.
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