This episode's headline: Tracking Anthrax; Newsmaker. ANCHOR: JIM LEHRER; GUESTS: SEN. JOHN KERRY; SEN. FRED THOMPSON; DR. ANTHONY FAUCI; CORRESPONDENTS: KWAME HOLMAN; RAY SUAREZ; SPENCER MICHELS; MARGARET WARNER; GWEN IFILL; TERENCE SMITH; KWAME HOLMAN