At the same time, morality laws established mandatory curfews and regulations on attire and music. In his program of Yushin Kaehyuk (Revitalizing Reforms), he caused Korean cinema to enter into a moribund period considered by many to be the lowest periods in the history of Korean cinema. Park had believed that South Korea was not ready to be a full democratic nation nor a free nation. As he stated, "Democracy cannot be realized without an economic revolution." Park argued that the poverty of the nation would make it vulnerable, and therefore an urgent task was to eliminate poverty rather than establish a democratic nation. During his presidency the Korean Central Intelligence Agency became a much feared institution and the government frequently imprisoned dissenters. Park Chung-hee's rule ended on October 26, 1979 when he was killed by his chief of security services, Kim Jae-gyu.