This episode's headline: Stacked Up; End of the Line; Superstar. The guests include In Washington: WILLIAM BOLGER, Air Transport Association; JIM BURNLEY, Deputy Transportation Secretary; Sen. JOHN DANFORTH, Republican, Missouri; In New York: RICHARD BERENDZEN, American University; REPORTS FROM NEWSHOUR CORRESPONDENTS: TOM BEARDEN. Byline: In New York: ROBERT MacNEIL, Executive Editor; In Washington: JUDY WOODRUFF, Correspondent