Here’s another emerging front in the Illegal Immigration War -- as CBS News reports, stores around the country that serve large Hispanic populations have been receiving death threats for accepting pesos as payment:

A pizza chain has been hit with death threats and hate mail after offering to accept Mexican pesos, becoming another flashpoint in the nation’s debate over immigrants. “This is the United States of America, not the United States of Mexico,” one e-mail read. “Quit catering to the damn illegal Mexicans,” demanded another. . . . Pizza Patron spokesman Andy Gamm said the company was just trying to sell more pizza to its customers, 60 percent of whom are Hispanic.

Wal-Mart, H-E-B supermarkets and other American businesses in towns along the Mexican border accept pesos. And some busineses in New York and Minnesota communities along the northern border accept Canadian dollars. The difference here is that many of the pizza joints are far from the border, in places like Dallas, more than 400 miles away, and Denver, more than 700 miles.

From a business point of view, of course it makes sense for these businesses that serve predominantly Latino customers -- many of them immigrants who have direct contacts with Mexico, illegal or not -- to accept pesos. But from a cultural/political point of view, as the article notes, this type of backlash is not that surprising. In other words, the Illegal Immigration War continues to rage . . .