This episode's headline: Peacekeeping; Media and Violence; Newsmaker; Political Wrap; Reserving a Place. ANCHOR: JIM LEHRER; GUESTS: CHRISTOPHER PATTEN; RUPERT WAINWRIGHT, Film Director, ""Stigmata""; ROBERT LICHTER, Center for Media & Public Affairs; E.J. DIONNE, Washington Post Columnist; MARK SHIELDS, Syndicated Columnist; PAUL GIGOT, Wall Street Journal; CORRESPONDENTS: IAN WILLIAMS; PAUL SOLMAN; MARGARET WARNER; KWAME HOLMAN; TERENCE SMITH; TOM BEARDEN; ELIZABETH FARNSWORTH; FRED DE SAM LAZARO