Frankly, and succinctly, I think you got down-voted because you did not use the word quarantine in your original post. It read as if you were proposing to send

Frankly, and succinctly, I think you got down-voted because you did not use the word quarantine in your original post. It read as if you were proposing to send drones to indiscriminately murder people in the affected areas. Which takes us to the point of how, exactly, do you think you can enforce a quarantine using drones? Sure, you can blow up everything that moves in a perimeter... but how are you going to pick your targets if civil authorities do not close all roads/ports/air-traffic? And how do you minimize the spread within the city once they have done that? You need boots on the ground to do that effectively! Drones are the atomic bombs of 21th century. A specific technology with extremely specific military applications that gets transformed by popular imagination into a symbol of limitless power. e.g. Drones have become the ultimate thought stoppers.