This episode's headline: Peace at Hand?; Resigned; Series - Aftershock; Resigned. The guests include SIR ROBIN RENWICK, Ambassador, Great Britain; DERMOT GALLAGHER, Ambassador, Ireland; ANDRZEJ OLECHOWSKI, Foreign Minister, Poland; BRUCE VAN VOORST, Time Magazine; DAVID SILVERBERG, Armed Forces Journal; CORRESPONDENT: ELEANOR GOODMAN. Byline: In New York: ROBERT MacNeil; In Washington: MARGARET WARNER