Sept. 12, 1961 - The Cuban Government launched a fresh attack against the Roman Catholic Church today. It accused priests and nuns of plotting to overthrow the regime of Fidel Castro and charged that the clergy was acting as an agent for U.S. intelligence. The attack was made in a communiqué by the Interior Ministry. The move was foreshadowed by denunciations of the clergy by newspapers, radio stations, and groups of Castro supporters in the wake of Sunday's anti-Communist demonstrations outside a church in Havana. The Vatican newspaper L'Osservatore Romano has expressed fear that Castro may be following Communist China's efforts to suppress the church entirely.