This episode's headline: Pilot Error?; Pursuing Peace; Temporary Workers; Making Dough; Diamonds Are Forever. The guests include In Washington; JOHN LAUBER, National Transportation Safety Board; SOL LINOWITZ, Former Ambassador to O.A.B.; In Chicago; Rep. JACK KEMP, (R) New York; REPORTS FROM NEWSHOUR CORRESPONDENTS:; SPENCER MICHELS; PAUL SOLMAN; MIKE LUPICA. Byline: In New York: JIM LEHRER, Associate Editor; In Washington: JUDY WOODRUFF, Chief Washington Correspondent
