Ever heard of a missile that doesn’t explode? That, the Wall Street Journal reports, is a key feature of a secret weapon adapted by the US military. It’s a modified version of a Hellfire missile that hits pinpoint targets but doesn’t explode on impact, meaning reduced damage and less risk of civilian casualties. The weapon, which the Journal likens to a “speeding anvil” falling out of the sky, is known as R9X. But it also has a nickname, “the flying Ginsu,” inspired by its hidden ring of six blades, which emerges just before impact and shreds anything it meets.