After the Mountain Minutemen were exposed:
http://www.splcenter.org/blog/2007/08/13/new-video-appears-to-show-vigilante-border-murder/
Other Minutemen Groups such as The Minuteman Project, the San Diego Minutemen, and Minutemen Civil Defense Corps, disavowed the Mountain Minutemen, but they seem to have found a defender at KFI.
That footage looks like one of those videos of people looking for ufos or ufo bases. If we're lucky the guys in the truck will be abducted and taken to another galaxy.