Prime Minister Sharon and President Katzav are among those addressing today's closing session of the Conference of Presidents of Major American Jewish Organizations' four-day seminar. Katzav met with the group at the President's Residence this morning, while Sharon will dine with them at the Inbal Hotel in Jerusalem tonight. Other sessions today, to be held at the capital's David Citadel Hotel, will include a forum on Israel's foreign policy, meetings with Shimon Peres, Tommy Lapid, and Eli Yeshai, and a panel on "The Reality of Terror, the Threat of War and Emergency Preparedness." The Conference of Presidents is the central coordinating body for 52 American Jewish agencies.