This episode's headline: Copper: No Protection; Sizing up the Campaign; South Africa in Turmoil; Forums for Peace; Book Review: Tough Guys Don't Dance. The guests include In Washington: Sen. DENNIS DeCONCINI, Democrat, Arizona; ALAN WOLFE, Former Deputy U.S. Trade Representative; ALAN BARON, Democratic Analyst; MARK HARROFF, Republican Analyst; In San Francisco: MICHAEL CLOUGH, Naval Postgraduate School; In New York: JOHN ALDRIDGE, Book Reviewer. Byline: In New York: ROBERT MacNEIL, Executive Editor; In Washington: JIM LEHRER, Associate Editor; JUDY WOODRUFF, Correspondent; Reports from NewsHour Correspondents: MONICA EVANS (Visnews), in Johannesburg, South Africa; BRENDAN HENEHAN (KTCA), in Minneapolis