This episode's headline: Farewell; Labor & Politics; Changing Times; In Memoriam. ANCHOR: JIM LEHRER; GUESTS: GERALD McENTEE, Chair, AFL-CIO Political Action Committee; REP. TOM DELAY, House Majority Whip; DR. ROBERT STEPHENS, General Surgeon; DR. TODD TAYLOR, Emergency Room Physician; DR. MARILYN LAUGHEAD, Obstetrician/Gynecologist; DR. MICHAEL GRAY, Internist; DR. MARK MORALES, CIGNA Staff Pediatrician; DR. DEBRA JAMISON, Internist; ROBERT CAMPBELL, Boston Globe; BARTON HARVEY, The Enterprise Foundation; CORRESPONDENTS: KWAME HOLMAN; ELIZABETH FARNSWORTH; TOM BEARDEN; CHARLAYNE HUNTER- GAULT;