"Save a Patriot"
This is a fascinating little group. Or fellowship. Or revolutionary cell. I'm not sure how to classify it/them, other than uber-libertarian, opposed to paying income taxes (and apparently avoiding it legally), and seemingly the target of some serious federal heat (from the IRS, FBI, etc.)
The Save-a-Patriot Fellowship mission, as stated on their website:
The SAP Fellowship ("SAPF") is a national organization of concerned Americans. We have joined together to resist illegal actions of the Internal Revenue Service (IRS) and other government agencies by preventing their misapplication of law.
We DO NOT advocate or condone unlawful resistance, protest, or other like actions. The Fellowship strongly believes that everyone must file whatever returns the law requires them to file, and pay any tax due for any liability as shown thereon in a timely and conscientious fashion. We do not condone the willful non-filing of required returns nor evasion of such taxes.