Pope Francis, Israel's President Shimon Peres, right, and Palestinian President Mahmoud Abbas, left, pray for peace at the Vatican on 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.

Gregorio Borgia / AP

Pope Francis, Israel's President Shimon Peres, right, and Palestinian President Mahmoud Abbas, left, pray for peace at the Vatican on 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.