Unmanned aerial vehicles (UAV), commonly known as drones, are widely used in mapping, aerial photography, rescue operations, shipping, law enforcement, agriculture, among other things. Despite great potential for improving public safety, use of drones can also lead to very undesirable situations, such as privacy and safety violations, or property damage. There is also the highly concerning matter of drones being harnessed to carry out terrorist attacks, which means a threat to public safety and national security.
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https://techxplore.com/news/2020-03-drone-safety.html