I may be naive, but are there really bad actors lurking the world that a) have the resource to pull off such a crime, b) be able to get away with c) not already have means to get what ever it is they want?
To take a stab at your hypothetical situation, the small town in Alaska has multiple armed guards 24/7 as well as centralized offsite monitoring. Protocols in place to alert local authorities which have protocols in place to alert state authorities, etc. The overhead will be covered by excess efficiencies in adopting such a system.