DUBAI - At a time of civil war, anarchy, extremism, and impoverishment in the Middle East, the city-states of Dubai and Abu Dhabi stand out as the places where Arabic speakers are flourishing, innovating, and offering a model for moving forward.But can it last? I recently visited the United Arab Emirates to seek answers.To begin with, some basic facts: Once called the Trucial States by British imperialists, the UAE consists of seven small monarchies bordering the Persian Gulf. They banded together in 1971, as the British retreated, to form a single federation.The country has been doubly blessed: oil and gas...