This episode's headline: Hard Ball; Healing Time; Power Surge; Conversation - Secrets. The guests include SEN. BOB GRAHAM, [D] Florida; SEN. ARLEN SPECTER, [R] Pennsylvania; CHARLES McCARRY, Author; CORRESPONDENTS: SPENCER MICHELS; MARGARET WARNER; EUGENE LINDEN. Byline: In New York: ROBERT MAC NEIL; In Washington: ELIZABETH FARNSWORTH