The Vietnamese had installed the communist PRK government led by Salvation Front dissident Heng Samrin. There are tensions regarding Tibet's political status and dissident groups that are active in exile. Dugin in the 1980s was a dissident and an anti-communist. Stein likened her arrest to the persecution of dissident Sergei Udaltsov in Russia. Bishop Richard Davies and dissident Protestant cleric John Penry introduced Calvinist theology to Wales. A newspaper run by dissident journalists began publication in 1988. Samizdat was a key form of dissident activity across the Soviet bloc. Campe was a liberal who published as many dissident authors as he could. Jamal Khashoggi was a Saudi-American dissident and journalist. He also befriended Anglo-American dissident and theologian Roger Williams. He used that power to expel dissident senators. Begin resented his being portrayed as a belligerent dissident. The threat of shunning also serves to deter members from dissident behavior. This led to more republicans lending their support to dissident groups. Allegedly Khashoggi was not the only dissident on Saudi's list to be abducted.