Aaron Schlossberg, a lawyer in New York, was caught on camera berating staff members of a restaurant for speaking Spanish with customers. A lot of multilingual countries promote an official language, but the United States has never done so with English. In fact, the US has no official language. "The Founding Fathers didn't see a need to declare one," Dr. Wayne Wright, a professor of language and literacy at Purdue University, told CNN. "English was pretty much the dominant language of the United States at the time and they didn't want to offend their fellow Americans who helped fight for...