This screen grab taken from the Dubai Police website, shows a photo of Sheikh Mohammed bin Rashid Al Maktoum, the Vice President and Prime Minister of the United Arab Emirates, and Ruler of Dubai, with the Burj Khalifa tower behind him, with one question in English and Arabic: “Are you happy in Dubai?” The online poll, which was unveiled Wednesday Oct. 21, 2015, comes as Dubai tries to break into the top 10 rankings of world’s happiest cities by 2021, an effort in league with other lofty aspirations in this emirate home to the world’s tallest building. Maj. Gen. Khamis Mattar Al Mazeina, Dubai’s police chief, told local media that his officers would randomly call a selection of those unhappy to ask what was upsetting them. (Dubai Police website via AP,)DUBAI, United Arab Emirates (AP) — If you say you're unhappy in Dubai, the police may call to ask you why as part of a new survey.