FILE - In this photo provided by the White House, the principals in the Middle East Summit, from left, Egyptian President Anwar Sadat, U.S. President Jimmy Carter, and Israeli Prime Minister Menachem Begin, meet for the first time at Camp David, Md., Sept, 6, 1978. (White House via AP, File)

FILE - Egyptian President Anwar Sadat, left, U.S. President Jimmy Carter, center, and Israeli Prime Minister Menachem Begin clasp hands on the north lawn of the White House after signing the peace treaty between Egypt and Israel, March 26, 1979, in Washington. (AP Photo/ Bob Daugherty, File)

FILE - President Anwar Sadat of Egypt, U.S. President Jimmy Carter and Israeli Prime Minister Menachem Begin stand for the playing of their National Anthems at the White House in Washington, March 26, 1979, before the signing of the peace treaty between Israel and Egypt. (AP Photo, File)

FILE - President Jimmy Carter, Israeli Premier Menachem Begin and Egyptian President Anwar Sadat gather with their aides during discussions on Middle East problems at Camp David, Md., in September 1978. (AP Photo, File)

FILE - President Jimmy Carter, center, is flanked by Israeli Prime Minister Menachem Begin and Egypt's President Anwar Sadat as they faced newsmen at the conclusion of their discussions toward Middle East Peace moves at Carter's Camp David retreat in Maryland in September 1978. (AP Photo, File)

FILE - President Jimmy Carter stands in front of the billowing flags of Egypt, on the left, and Israel as the national anthems of the three countries are played before the signing of the peace treaty at the White House in Washington, March 26, 1979. (AP Photo, File)