Civilian government

If there was an organization that governed itself, and treated its members as  a pseudo-government with no physical borders, what could the official government do to bring it down?  What if the civilians were organized into their own police and military- how would the official police and military react?  What about making changes based on the internal laws of the organization by its own authority, but not by the official government? 

For example, actually building a wall on the Mexico border and ignoring any US authority that tries to intervene.  Or setting up an independent police-like force that arrests criminals in cities with no authority in the official government.  People that bust drug labs, clean polluted areas, renovate slums, and provide for the needy.

For example, during Hurricane Katrina people were turned away because they  weren't "authorized" to give food.  Others were turned away because officially they were not allowed to carry weapons, even the police.  Now say an organization walked in anyway, gave food, and carried weapons.  It's justification is that it acts under its own authority.  It is an independent body, and it has willingly broken a law in place by the official government.  The organization is willing to defend its own rights based on this independence, and is willing to administer self defense.

What's the worst that can happen?         

>>1
Freedom and liberty. That's why Liberals and Conservatives will do everything to prevent this from happening.

>>1
Bullet riddled corpses and an elaborate smear campaign, followed by a quickly ignored acquittal of the few survivors.

No government can declare itself to exist without legitimacy ie. international recognition, unless they want to be called rebels. 

We need to try minarcism. No-one has ever tried it. Sure it may not work, but it would be nice to try it.

Aren't Mexicans forming a collective while ignoring police and official laws? 

>>1
Greenpeace.

Police arrest vigilantes.

Building a wall without permits and licenses too will also get you arrested and confined.

>>6
Yeah, but they're special.GWB and Vincente Fox have one of those "special" relationships.

>>7
 The French military blew the bottom out of one of their boats.

http://en.wikipedia.org/wiki/Sombra_Negra

We need something like this