The GPS community carries around a loaded weapon, seemingly unconcerned with figuring out how to put a safety on it. This is a catastrophe waiting to happen, one that could hobble the industry.rnEquipment to interfere with the GPS signal is readily available over the Internet, as are instructions to bench-assemble one's own. We have not adequately foreseen nor forestalled the havoc that some well-placed malfeasance could create.
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