This episode's headline: Healthy Debate; Hebron Aftermath; Open Sesame; Finally - 1945-1994. The guests include SEN. JOHN CHAFEE, [R] Rhode Island; SEN. HARRIS WOFFORD, [D] Pennsylvania; REP. BILL ARCHER, [R] Texas; LEWIS PULLER, JR., 1992 Pulitzer Prize Winner; CORRESPONDENTS: KWAME HOLMAN; LIZ DONNELLY; PHILIP ELMER-DeWITT; CHARLIE ROSE. Byline: In New York: MARGARET WARNER; In Washington: JAMES LEHRER