SOVIET SAYS CHINA PERILS RED CAUSE; Sweeping Attack Concedes Moscow Policy of Silence to Criticism Failed SOVIET SAYS CHINA PERILS RED CAUSE
USSR party warns that internatl Communism is in serious danger by Peking threat to break formally with Moscow and establish its own rival movement, front page Pravda ed, form reserved for highest policy expression; acknowledges failure of yr-old policy of silence; denunciation is most sweeping since Khrushchev downfall; Moscow observers impressed by its calculated harshness and by seriousness with which USSR takes separatist threat almost hidden in Chinese Nov 10 statement