The world can’t really agree on what to call them—let alone how to regulate them. Their proliferation has come about so fast it has taken nearly everyone by surprise, and their future is largely shrouded by an uneasy—if also exciting—feeling of the unknown. Unmanned aerial vehicles (UAV), or unmanned aircraft systems (UAS), or remotely piloted aircraft systems (RPAS), or—quite simply—drones. This muddle of language goes a long way in explaining why it is ...

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