This episode's headline: Persona Non Grata; The Big Chill. The guests include RUPERT WHITAKER, AIDS Researcher; REP. WILLIAM DANNEMEYER, [R] California; DR. DAVID ROGERS, National Commission On AIDS; DR. WILLIAM JONES, Member, Arkansas Task Force On AIDS; CORRESPONDENTS: KWAME HOLMAN; JUDY WOODRUFF. Byline: In New York: ROBERT MacNeil; In Washington: JAMES LEHRER