Imagine a group of individuals seizing an American town or city, disarming the local law enforcement agency, apprehending and imprisoning citizens who pose threats to their agenda, and taking over the local government. Such a scenario may seem unlikely to the average American unless one were to consider a group composed of something like Islamic extremists or foreign nationals who are anti-American with a political agenda. No doubt the guardians that we task to protect and defend our freedoms, our lives, and our property consider such a scenario as well as many potential other ones that can pose threats to...