Children attend a mass to mark the World Day of Peace in Saint Peter's Basilica at the Vatican

Pope Benedict XVI blesses children wearing the costumes of the three wise kings as celebrates a mass in St. Peter's Basilica at the Vatican, Tuesday, Jan. 1, 2008. The Pontiff opened the New Year on with an appeal for world peace, calling it a 'divine gift'' and stressing the role of family as the foundation for it.