This episode's headline: South Africa: U.S. Policy; Pressuring Pretoria; Vietnam Today; Morally Right?. The guests include In Washington: Sen. RICHARD LUGAR, Republican, Indiana; PAUL MURPHY, National Foreign Trade Council; FRITZ PLEITGEN, ARD-TV, Germany; JON SNOW, Independent TV, Britain; GERARD SAINT PAUL, TV-One, France; In New York: OLIVER TAMBO, President, African National Congress; DAVID RAMAGE, New World Foundation; Reports from NewsHour Correspondents: DON MURRAY (CBC), in Vietnam. Byline: In New York: CHARLAYNE HUNTER-GAULT, Correspondent; In Washington: JIM LEHRER, Associate Editor; JUDY WOODRUFF, Correspondent
