This episode's headline: Troubled Waters; Day in Court; News Maker; Working Girl; Treating Breast Cancer. The guests include PETER ISLEIB, Commercial Fisherman; NORMAN COHEN, Alaska Department of Fish & Game; NINA TOTENBERG, National Public Radio; PAUL VOLCKER, National Public Service Commission; CORRESPONDENTS: CHARLAYNE HUNTER-GAULT; ELIZABETH BRACKETT; ESSAYIST: ANNE TAYLOR FLEMING. Byline: In New York: ROBERT MacNeil; In Washington: JUDY WOODRUFF