Foreign Minister Shimon Peres met in Athens this morning with Palestinian Authority official Nabil Sha\'ath, in the presence of European Union officials. A spokesman for Prime Minister Ariel Sharon\'s office says that Peres only discussed the need for the PLO to stop its violent attacks on Israelis with Sha\'ath, \"and thus, today\'s meeting did not depart from the fundamental principle that Israel will not negotiate under fire,\" the spokesman said.