sentences:  Hoang charged that Vietnam's abuse of its ethnic Chinese minority was "even worse than Hitler's treatment of the Jews" and that Hanoi had become "subservient to a foreign power," referring to the Soviet Union.Hoang disclosed that in 1982, the Vietnamese Communist Party's Central Committee decided that opium production should be used to raise badly needed foreign currency like U.S. dollars .Hoang authored his reminiscences as "A Drop in the Ocean".