GSS TIGHTENS SECURITY FOR MORDECHAI DUE TO CONCERNS OF EXTREMIST ATTACK ISRAEL LINE TUESDAY, JANUARY 7, 1997 The General Security Service has tightened security for Defense Minister Yitzhak Mordechai due to concerns that extremist right-wing activists may try to attack him because of his position regarding negotiations with the Palestinians, YEDIOT AHARONOT reported. According to the GSS assessment, Jewish extremists have "marked" Mordechai and Prime Minister Benjamin Netanyahu. HA'ARETZ reported that Mordechai told the Knesset Committee on Foreign Affairs and Defense that the security establishment must prepare itself to contend with extremist elements among Jews and Arabs in Hebron. The Defense Minister added that security authorities must take appropriate steps and prevent bloodshed. ISRAEL LINE