A Catholic nun walks past the Vatican fl

A Catholic nun walks past the Vatican flag and a poster welcoming Pope Benedict XVI with the word "Welcome" written in several languages including Arabic and Hebrew, ahead of his visit to the Holy Land on May 08, 2009, in the Christian quarter of Jerusalem's Old City. Pope Benedict XVI heads to the Middle East as a "pilgrim of peace" between Israelis and Palestinians, but the trip is already overshadowed by tense relations between Jews and Catholics. The pope begins his visit to Jordan on May 8 before traveling to Israel and the Palestinian territories on May 11. AFP PHOTO/GALI TIBBON (Photo credit should read GALI TIBBON/AFP via Getty Images)