PoliticsAgeing Kuwaiti ruler Sheikh Sabah flies to US for medical treatmentKuwaiti ruler flies to US to seek further medical care after undergoing surgery, crown prince takes controlMedical aid: Emir of Kuwait, Sheikh Sabah al-Ahmad al Jaber al Sabah, right, welcoming Saudi Crown Prince Mohammed bin SalmanPhoto: AFP/SCANPIXNassir ShirkhaniIstanbul