Sounds like the gov. is getting in front of a 'new' brand of conspiracy theorists and "Wackos". . .

Deputies had conducted a traffic stop for suspected vehicle code violations Saturday near Joshua Tree National Park. Inside the car were David Russell, 50, and Jeffery Russell, 46, who identified themselves as sovereign citizens. A records check showed that the two men were prohibited from possessing and owning firearms.

Deputies found "live ammunition, black gunpowder, and an improvised military-grade explosive device" inside the car, they said, adding that the explosive device was safely disposed of.

Deputies then obtained a search warrant for a property in Johnson Valley, California, the community where the Russells reside. They discovered more military-grade explosives and ammunition, as well as firearms, at the compound; a woman at the compound, Venus Mooney, 54, was arrested.

Sovereign citizens are a fringe group whose members consider themselves exempt from U.S. law and who sometimes use violent tactics to justify their beliefs, according to the Southern Poverty Law Center.

Sovereign citizens often retaliate through acts of "paper terrorism," which involves bombarding the legal system with frivolous lawsuits or falsified documents. Violence is the most extreme form of the movement and is typically directed at government officials, according to the Southern Poverty Law Center.

https://www.nbcnews.com/news/us-news/sovereign-citizens-arrested-california-deputies-allegedly-find-explosi-rcna34380

https://www.thedailybeast.com/alleged-sovereign-citizen-wackos-arrested-with-explosives-and-ammo