This brief article looks at the threat potentials related to multi-drone swarms. Multi-drone terrorism represents an emerging terrorism threat, with a range of potential consequences including, at the high end, mass casualties. Although terrorists could quite easily acquire numerous drones, they face considerable challenges in obtaining and deploying the technology to control multiple drones at once. This is especially true for drone swarms in which multiple drones are integrated into a single weapon platform with inter-drone communication. The real difficulties involved with mounting a truly massive drone attack means that policy-makers must plan for a broad range of threats, and carefully balance the costs of defense systems against risks posed to particular targets.[
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