This episode's headline: Roots of Violence; Getting Down to Business; Spreading Scandal; Demonic Mnemonics. The guests include In Washington: DEAN BROWN, Former U.S. Ambassador to Jordan; MASHE ARAD, Israeli Ambassador; NINA TOTENBERG, National Public Radio; In New York: In Dallas: EMILE SAHLIYEH, North Texas State University; REPORTS FROM NEWSHOUR CORRESPONDENTS: JEFF GOLDMAN; JOHN MERROW; JUDY WOODRUFF; ROGER MUDD. Byline: In New York: CHARLAYNE HUNTER-GAULT, National Correspondent; In Washington: JIM LEHRER, Associate Editor