We lived in western Wyoming in the 80's. Many of the locals we knew were part of the "Wyoming Militia," a group established to prevent the incursion of outsiders should (1) California fall into the ocean, or (2) the country's economy crashed and folks from the coastal states headed for safety and good hunting.
While some of them were "gun nuts" just looking for an excuse to "play soldier," most of them were (otherwise) good, responsible citizens...and a couple were members of the local sheriff's department...and were dead serious about keeping outsiders in case of an apocalyptic type of event. <shrug>
Can't say as I blame them. PARTS of Wyoming are beautiful, unfortunately, the nice parts are surrounded by places that look like they were flushed through Hell's toilet.