This episode's headline: The Exile Oprtion; Protesting War; Conversation; King Day. ANCHOR: JIM LEHRER; GUESTS: JUDITH YAPHE; ROBIN WRIGHT; MOHAMMED WAHBY; MICHAEL BESCHLOSS; PHILIPZ ZELIKOW; LUCY BARBER; STANLEY NELSON; ROBERT PINSKY;CORRESPONDENTS: KWAME HOLMAN; RAY SUAREZ; SPENCER MICHELS; MARGARET WARNER; GWEN IFILL; TERENCE SMITH; KWAME HOLMAN