Surviving a weekend with the Arizona Minutemen Most of us were aliensonce upon a time.(Photos by Marc Cooper) TOMBSTONE, ARIZONA — Unwittingly, for sure. Nevertheless, the organizers of this month’s Minuteman Project — a plan to deploy 1,000 or more volunteers to blockade a portion of the Mexican border — couldn’t have chosen a more appropriate staging ground than this movie-set town totally dedicated to Old West re-enactments. Last weekend, mustachioed, six-gun–carrying Tombstone Marshals (as the local police call themselves), standing alongside tourist stagecoaches, gathered on the town’s main street with a squad of Wyatt Earp and Clanton Gang impersonators...