Prime Minister Castro in speech before congress of Sugar Workers Federation (FNTA) December 15 heavily emphasized threat to revolution posed by counter-revolutionaries at home and abroad. Said there is real and present danger of invasion by foreign forces. Bitterly attacked "reactionary press" with special emphasis on MARINA and AVANCE. Cenrado Becquer in speech opening meeting said that if United States reduces quota FNTA supported by its 500,000 members will demand revolutionary government nationalize the industry. Castro's speech was in now familiar vein. Said great sacrifices have been made and greater ones may be called for. Repeatedly returned to them that revolution surrounded by enemies and persecuted by foreign interests. Ton militant throughout. Becquer's reference to nationalization was in line with rumors heard here recently that his ultimate objective. BRADDOCK -END-