Sun Myung Moon, a self-styled messiah from South Korea who founded the Unification Church, has died at the age of 92. Moon was revered by his followers, but critics denounced him as a cult-building charlatan. His church was best known for organising mass weddings where couples often only meet for the first time on the wedding day. RFI spoke to Steven Hassan, a former member of the Moon cult who is now an activist against religious sects.