I found this piece interesting reading all the way through. I found it within comments somewhere, a link to a post at taxicabdepressions. The writer brags his piece was picked up by Western Rifle Shooters, at first scan that appears to be exceedingly far right prep group.
The piece begins with a photo a a militarized vehicle with soldiers hanging off it within an urban street scene and the reader reasonably assumes the term pig refers to them, but the photo is a bit superfluous, perhaps descriptive of intent, the term refers to an actual pig trap.
The taxi driver describes meeting two people. The first is a fare with an alarming response to simple discussion. The rider said something incredibly provocative, while demonstrating and maintaining clear thought and astute response to query, and with decisive uncompromising conclusions, the whole thing disquieting. The driver dismissed the rider and his thoughts as conspiracy in nature but over time the man's saying continued to nag. And nag. And nag. The description of posture caught my attention. The driver describes noticing what I would have noticed.
The second person the driver describes he sought out for endorsement and for photos to include in a website, previous to driving a cab. This is the pig trap person, a Ted Nugent type minus the flash, hype and ego. The author describes his live-off the land lifestyle, his non-hunting approach to animal husbandry that the man developed for himself on his own land.
In the cab driver's synthesis, the pig trap is metaphor for what government is doing to the country in stages. He nicely correlates present day political activities with his endorser's method of herding intelligent creatures to slaughter by using their their need, their greed, and their complacency in overriding their intelligence.