I'll be watching this as the story develops...

AP - Intent on securing the vulnerable Arizona border from illegal immigrant crossings, U.S. officials are bracing for what they call a potential new threat this spring: the Minutemen. [Yahoo! News: Most Viewed]

Update:

The United States border in Arizona will now be patrolled by a group of volunteers enrolled in the "Minuteman Project." While a steady influx of illegal immigrants from Mexico has always been a problem, plans to send hundreds of untrained (and sometimes armed) men on 24-hour desert patrols may not be the brightest idea. Goverment officials are expected to begin warning Americans to "stay the hell away from the Mexican border if you know what's good for you." Source
[Regurgitated News]