Sex and the Single Drone

"They are relatively cheap.  When they “hunt,” no one dies (at least on our side).  They are capable of roaming the world.  Someday, they will land on the decks of aircraft carriers or, tiny as hummingbirds, drop onto a windowsill, maybe even yours, or in their hundreds, the size of bees, swarm to targets and, if all goes well, coordinate their actions using the artificial intelligence version of “hive minds.”