This episode's headline: Struggle at the Top; Gergen & Shields; Waco - Tarnished Image. The guests include ADRIAN KARATNYCKY, Russia Analyst; DMITRI SIMES, Russia Analyst; ROBERT STRAUSS, Former U.S. Ambassador, Russia; C. FRED BERGSTEN, International Economist; FOCUS - GERGEN & SHIELDS: DAVID GERGEN, U.S. News & World Report; MARK SHIELDS, Syndicated Columnist; CORRESPONDENT: BETTY ANN BOWSER. Byline: In New York: ROBERT MacNeil; In Washington: JAMES LEHRER