Sickened by the collapse of our border with Mexico, which for years has been trampled into sandy insignificance by hordes of illegal immigrants, most Americans today robustly cheer the news that their fellow citizens in Arizona are blowing the whistle on international outlaws who have no respect for U.S. rules and sovereignty. The so-called Minuteman Project privately and peacefully is dispatching fed-up, volunteer gringos to 1) patrol the 23 miles of border in San Pedro Valley, 2) spot any crossing violators, and 3) alert federal agents that our immigration laws are in the process of being broken. Although there is...