This episode's headline: Miami Looks at Jackson; Bankruptcy Reform; Argentina: New President Talks to Us; Canada's Departing Leader; PG 13: Rating the Movies. The guests include In Los Angeles: RICHARD LEVIN, Bankruptcy Lawyer; In Buenos Aires: RAUL ALFONSIN, President of Argentina; In Washington: JACK VALENTI, Motion Picture Association of America. Byline: In New York: CHARLAYNE HUNTER-GAULT, Correspondent; In Washington: JIM LEHRER, Associate Editor; Reports from NewsHour Correspondents: ELIZABETH BRACKETT, in Miami; CHARLES KRAUSE, in Buenos Aires; JUDY WOODRUFF