One of the factors is the potential persistence and scale of drone-based surveillance systems. I think asking that question is important, because we have the ca

One of the factors is the potential persistence and scale of drone-based surveillance systems. I think asking that question is important, because we have the capability to deploy (and shockingly, have deployed, at least on a trial basis) constant wide-area surveillance via drones in the US (Gorgon Stare): https://www.wsj.com/articles/when-battlefield-surveillance-comes-to-your-town-11564805394 https://www.wsj.com/articles/when-battlefield-surveillance-c...