Drones are becoming more common and more useful all the time, and at the same time, these devices are also getting to be more of a nuisance/threat for air traffic and important (sometimes life-saving) activities. Firefighters in helicopters are grounded when drones could potentially interfere with their work because it's a safety hazard to the helicopter and its passengers. The FAA hasn't yet come up with a complete set of drone-specific regulations, so for now, there's a bit of legal limbo and some strange rules to follow that don't always make sense.
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