Camp David Through the Years—PICTURES

A Secret Service agent stands guard at center, almost blending with the shadows cast by leafless trees around Laurel Lodge at Camp David, Nov. 21, 1955, where the National Security Council was meeting with President Eisenhower for the first time since his heart attack.  (AP Photo)

Egypt's President Anwar Sadat (left) shakes hands with Israeli Prime Minister Menachem Begin as President Carter (center) looks on. The leaders were meeting at Camp David in September 1978 for talks aimed at laying the groundwork for a permanent Middle East peace. (AP Photo)

Egypt's President Anwar Sadat sits listening to his foreign minister, Mohamed Ibrahim Kamel (center), with Under Secretary of State Osama el-Baz (left) and Deputy Prime Minister Mohammed Al-Tohami looking on, during a morning conference at Camp David on Sept. 12, 1978.  (AP Photo/J. Scott Applewhite)

President Reagan welcomes British Prime Minister Margaret Thatcher as she arrives for a private visit at Camp David on Dec. 22, 1984.  (AP Photo)

Russian President Boris Yeltsin smiles as President George H.W. Bush points to a reporter who wished Yeltsin a happy birthday during a news conference at Camp David on Feb. 1, 1992. Yeltsin and Bush signed a declaration recognizing the nature of their relationship. "From now on, we do not consider ourselves to be enemies," the Russian president said.  (AP Photo/Doug Mills)

President Clinton (center), Israeli Prime Minister Ehud Barak (left), and Palestinian leader Yasser Arafat walk on the grounds of Camp David on July 11, 2000, at the start of the Mideast summit.  (AP Photo/Ron Edmonds)

President George W. Bush (third from left) meets with his cabinet and advisers on Sept. 15, 2001, at Camp David. (AP Photo/J. Scott Applewhite)