Iran's Supreme Leader Ayatollah Ali Khamenei made a public appearance in the capital Tehran on Saturday amid reports of his failing health. He took part in a ceremony to commemorate Arbaeen, which marks the 40th day after Ashura, the day Islam’s Prophet Muhammad’s grandson was killed in 680 AD, wearing mask and sporting black dress. A mourning ceremony for the #Arbaeen (40th day) of the martydrdom anniversary of Imam Hussain ...