Pope Francis plants an olive tree with Israel's President Shimon Peres, left, Palestinian President Mahmoud Abbas, second from left, and Ecumenical Patriarch Bartholomew I, right, in a sign of peace during an evening of peace prayers in the Vatican gardens, Sunday, June 8, 2014. Pope Francis waded head-first into Mideast peace-making Sunday, welcoming the Israeli and Palestinian presidents to the Vatican for an evening of peace prayers just weeks after the last round of U.S.-sponsored negotiations collapsed. (AP Photo/Max Rossi, Pool)