This episode's headline: Death Knell; News Maker; Time to Act; The Great Divide. The guests include YELENA BONNER, Human Rights Activist; SEN. RICHARD LUGAR, [R] Indiana; SEN. PATRICK LEAHY, [D] Vermont; REP. LES ASPIN, [D] Wisconsin; SEN. JOHN McCAIN, [R] Arizona; CORRESPONDENTS: ROBERT MOORE; CHARLES KRAUSE; ELIZABETH BRACKETT. Byline: In New York: ROBERT MacNeil; In Washington: JUDY WOODRUFF