Pope Benedict XVI greets religious leaders at the opening of the Interreligious talks attended by the Archbishop of Canterbury Rowan Douglas Williams (L), the Archbishop of Constantinople Bartelomeo I (C), on October 27, 2011 in Santa Maria Angeli's Basilica (St Mary of the Angels) in Assisi, Italy. Pope Benedict XVI will lead the 25th Interreligious talks, a "journey of reflection, dialogue and prayer for peace and justice in the world" held in St. Francis of Assisi's birthplace, with four leading atheist intellectuals taking part for the first time. UPI/Stefano Spaziani