(wapo) LOS ANGELES Amid all the national debate over immigration, at least one firm consensus has emerged: Newcomers to the United States should learn English because it remains the lingua franca of our civic life. All three remaining presidential contenders say that the ability to speak English should be a requirement of U.S. citizenship. And last year, the immigrant governor of California told a convention of Latino journalists that immigrants should watch only English-language TV so they can understand the language and news of their home state. "You've got to turn off the Spanish television set," Gov. Arnold Schwarzenegger advised the National Association of Hispanic Journalists. Schwarzenegger is wrong, and so is this new consensus. The error is particularly obvious in cities with the largest immigrant populations, especially Los Angeles, the town the governor calls home. Schwarzenegger could discover ample evidence of this all by himself -- simply by turning on his television. On most nights here, the most timely, serious and civic-minded local news is not available on the Internet, the radio or any of the half-dozen English-language stations that broadcast nightly shows that purport to be newscasts. At 11 p.m. each night here, the best newscasts in the market appear on two Spanish-language channels, Univision's flagship KMEX and Telemundo affiliate KVEA. This might come as a surprise to English-speaking Americans, who hear about the Spanish-language TV news only when its on-air personalities engage in soap-opera-style antics, such as the KVEA anchor-reporter who became the mistress of Los Angeles Mayor Antonio Villaraigosa. But I've been watching these two Spanish newscasts and their English competitors on the local ABC, NBC and CBS affiliates, and the content doesn't lie. If immigrants took Schwarzenegger's advice and flipped off Spanish stations in favor of English-language news, they wouldn't have nearly as good an idea of what was happening in their adopted city, state and country.