This episode's headline: Operation Allied Force; News From the Front; Justice Without Justice. ANCHOR: JIM LEHRER; GUESTS: JAMES SCHLESINGER, Former Secretary of Defense, Nixon/Ford Administration; HAROLD BROWN, Former Secretary of Defense, Carter Administration; FRANK CARLUCCI, Former Secretary of Defense, Reagan Administration; GEORGE WILSON, Military Correspondent; KENNETH BACON, Pentagon Spokesman; CORRESPONDENTS: TOM BEARDEN; CHARLES KRAUSE; TIM EWART; PHIL PONCE; MARGARET WARNER; KWAME HOLMAN; ELIZABETH FARNSWORTH; LEE HOCHBERG