The Mexican headquarters of Spain’s BBVA, located in one of the capital’s tallest skyscrapers, were evacuated on Wednesday around midday due to what the bank said were two anonymous emails threatening violent acts against its corporate offices. BBVA said in a statement it did not believe the threats were real, but evacuated the 235-meter (771-foot) tower as well as another Mexico City office as a precaution. “In an effort to protect the physical …