This episode's headline: Flight 103 - More Questions; Wall St. - Taking Stock. The guests include SEN. FRANK LAUTENBERG, [D] New Jersey; GEORGE CARVER, Former CIA Official; JOHN PHELAN, JR., New York Stock Exchange; CHARLES WOHLSTETTER, Contel Corporation; J. THOMAS ALLEN, Investment Manager; CORRESPONDENT: PAUL SOLMAN. Byline: In New York: ROBERT MacNeil; In Washington: JAMES LEHRER