This episode's headline: GM: Belt Tightening; Business Bloat; Alien Control. The guests include In New York: MARYANN KELLER, Auto Industry Analyst; In Washington: ALAN NELSON, INS Commissioner; In Albuqureque: Gov. TONEY ANAYA, Democrat, New Mexico; In San Diego: BRIAN BILBRAY, San Diego County Supervisor; REPORTS FROM NEWSHOUR CORRESPONDENTS: PETER GOULD (BBC), in Britain; PAUL SOLMAN; TOM BEARDEN. Byline: In New York: ROBERT MacNEIL, Executive Editor; In Washington: JIM LEHRER, Associate Editor