I dont think many people are going to be able to shoot these down. However, hackers all across the country will and are already taking over these things and using them as remote conrol airplanes. It is actually really easy to do if you know what you are doing.
Apperantly, they are taken over all the time over Africa but the hackers are smart and only assume control for a short period of time then return the drone to a similar location so the original controller thinks they just temporarily lost a signal. Its actually quite fun from what I have heard.
We all share this eternally evolving present moment- The past and future only exist as inconsequential mental fabrications.