This episode's headline: South Africa State of Emergency; Mexico: Troubled Neighbor; What is a Father?; The King is Dead. The guests include In New York: HERBERT BEUKES, Ambassador, South Africa; In New Orleans: AMAN MSANI, Labor Leader, South Africa; In Washington: Sen. PHIL GRAMM, Republican, Texas; In San Antonio: HENRY CISNEROS, Mayor, San Antonio; REPORTS FROM NEWSHOUR CORRESPONDENTS: MICHAEL BUERK (BBC), in South Africa; CHARLES KRAUSE, in Mexico; ANNE TAYLOR FLEMING, in California; ANDRE PREVIN. Byline: In New York: ROBERT MacNEIL, Executive Editor; In Washington: JIM LEHRER, Associate Editor