This episode's headline: Somalia Diary; Newsmaker; Valedictory. The guests include GEN. CARL MUNDY, Commandant,U.S. Marine Corps; JAMES TOBIN, Yale University; ALLEN SINAI, Economist; CHARLES McMILLION, Economist; PRESIDENT-ELECT CLINTON; WILLIAM BRANDON, American Bankers Association; BARBARA DAVIS BLUM, CEO, Adams National Bank; BRUCE LLEWELLYN, Coca-Cola Bottling Company; ELAINE KAMARCK, Progressive Policy Institute; PAUL SOLMAN; ELIZABETH DREW, Columnist; CORRESPONDENT: CHARLAYNE HUNTER-GAULT. Byline: In New York: ROBERT MacNeil; In Washington: JAMES LEHRER