This episode's headline: The Baghdad Project; Mexico Model; Monetary Influence. The guests include JANNE NOLAN, Brookings Institution; LEONARD SPECTOR, Carnegie Endowment; GARY MILHOLLIN, Wisconsin Project; LEE CULLUM, Dallas Times Herald; GERALD WARREN, San Diego Union; CYNTHIA TUCKER, Atlanta Constitution; ERWIN KNOLL, The Progressive; CORRESPONDENTS: CHARLES KRAUSE; JUDY WOODRUFF. Byline: In New York: ROBERT MacNeil; In Washington: JAMES LEHRER