This episode's headline: Securing Iraq; High School Recruiting; Securing Iraq; Kerik Withdrawl; Young at Heart. ANCHOR: JIM LEHRER; GUESTS: COL. THOMAS HAMMES; PETER KHALIL; SEVAN LOUSINIAN; ELISABETH BUMILLER; JUDY BLUME; CORRESPONDENTS: KWAME HOLMAN; RAY SUAREZ; SPENCER MICHELS; MARGARET WARNER; GWEN IFILL; TERENCE SMITH; KWAME HOLMAN