This episode's headline: The Challenge; View from Abroad; Markets & Politics; History on Hold - Day 8. ANCHOR: JIM LEHRER; GUESTS: PAM KARLAN, Stanford University; LANCE DeHAVEN-SMITH, Florida State University; CLAUS KLEBER, ARD TV; ANA BARON, Clarin Newspaper; SATORU SUZUKI, TV Asahi; SILVIE KAUFFMANN, Le Monde Newspaper; ROBERT HORMATS; DANIEL GROSS; CORRESPONDENTS: FRED DE SAM LAZARO; BETTY ANN BOWSER; SUSAN DENTZER; RAY SUAREZ; SPENCER MICHELS; MARGARET WARNER; GWEN IFILL; TERENCE SMITH; KWAME HOLMAN