This episode's headline: Critical Crossroads; Congressional Hearings; ?Special Treatment? ?Dream Deferred. The guests include SEN. RICHARD LUGAR, [R] Indiana; SEN. JOSEPH LIEBERMAN, [D] Connecticut; LESLIE GELB, Council on Foreign Relations; WILLIAM HYLAND, Georgetown University; CORRESPONDENTS: GABY RADO; KWAME HOLMAN; BETTY ANN BOWSER; SPENCER MICHELS; TOM BEARDEN. Byline: In New York: ROBERT MAC NEIL; In Washington: JAMES LEHRER