This episode's headline: Dismissed; Newsmaker; Losing Diversity. ANCHOR: JIM LEHRER; GUESTS: GEORGE TERWILLIGER, Former Bush Attorney General; LANNY DAVIS, Former Clinton White House Counsel; WILLIAM COHEN, Secretary of Defense; ROBERT BERDAHL, Chancerllor, UC Berkeley; WARD CONNERLY, University of California Regent; GOV. PETE WILSON, [R] California; ANTONIO VILLARAIGOSA, Speaker [D], California; CORRESPONDENTS: MARGARET WARNER; SPENCER MICHELS; ELIZABETH FARNSWORTH