AMMAN - A Jordanian security court sentenced a senior Muslim Brotherhood leader to 18 months in prison on Sunday for criticizing the United Arab Emirates on social media, a judicial source said. The court found politician Zaki Bani Rushaid guilty of souring ties with a foreign country. Rushaid, the deputy head of the Muslim Brotherhood in Jordan, had criticized the UAE for designating the pan-Islamic movement as a terrorist group. Rushaid was arrested in November after writing that the UAE's rulers lacked popular legitimacy and served Israeli interests by playing a leading role in a crackdown on political Islam.