Sea mines are so powerful, in part, because they have “disproportionate psychological effects,” designed to prey on the fear of the unknown. The mines are nearly invisible at every stage and are incredibly difficult to detect—unlike missiles, where sailors can use heat signatures or trails picked up by radars. But for a mine, all that needs to happen is a vessel pulls up, shoves one overboard, and moves on. “There’s a splash in the water,” Savitz said. “Ships are dropping things in the water all the time.”
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