This episode's headline: The Clinton Factor; Likud Vs. Labor; Conversation. The guests include ROGER JOHNSON, Chairman, Western Digital Corporation; PAUL GREENBERG, Arkansas Democrat Gazette; JIM BLANCHARD, Former Michigan Governor; RICHARD COHEN, Washington Post; ROGER WILKINS, George Mason University; PAUL VOLCKER, Former Chairman, Federal Reserve; CORRESPONDENT: LIZ DONNELLY. Byline: In New York: ROBERT MacNeil; In Washington: JUDY WOODRUFF