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Pope Francis greets the crowd as he arrives for his general audience at St Peter's square on October 2, 2013 at the Vatican. AFP PHOTO / ALBERTO PIZZ...

Pope Francis greets the crowd as he arrives for his general audience at St Peter's square on October 2, 2013 at the Vatican. AFP PHOTO / ALBERTO PIZZ...

Pope Francis greets the crowd as he arrives for his general audience at St Peter's square on October 2, 2013 at the Vatican. AFP PHOTO / ALBERTO PIZZ...

A Brazilian national flag flies as Pope Francis greets the crowd before his general audience at St Peter's square on October 2, 2013 at the Vatican....

Pope Francis greets the crowd as he arrives for his general audience at St Peter's square on October 2, 2013 at the Vatican. AFP PHOTO / ALBERTO PIZZ...

Pope Francis greets the crowd as he arrives for his general audience at St Peter's square on October 2, 2013 at the Vatican. AFP PHOTO / ALBERTO PIZZ...

Pope Francis greets the crowd as he arrives for his general audience at St Peter's square on October 2, 2013 at the Vatican. AFP PHOTO / ALBERTO PIZZ...

Pope Francis greets the crowd as he arrives for his general audience at St Peter's square on October 2, 2013 at the Vatican. AFP PHOTO / ALBERTO PIZZ...

Pope Francis greets the crowd as he arrives for his general audience at St Peter's square on October 2, 2013 at the Vatican. AFP PHOTO / ALBERTO PIZZ...

Pope Francis greets a child as he arrives for his general audience at St Peter's square on October 2, 2013 at the Vatican. AFP PHOTO / ALBERTO PIZZOL...

Pope Francis greets a child as he arrives for his general audience at St Peter's square on October 2, 2013 at the Vatican. AFP PHOTO / ALBERTO PIZZOL...

Pope Francis (C) arrives for his general audience at St Peter's square on October 2, 2013 at the Vatican. AFP PHOTO / ALBERTO PIZZOLI

Pope Francis arrives for his general audience at St Peter's square on October 2, 2013 at the Vatican. AFP PHOTO / ALBERTO PIZZOLI

Pope Francis greets the crowd as he arrives for his general audience at St Peter's square on October 2, 2013 at the Vatican. AFP PHOTO / ALBERTO PIZZ...

Pope Francis arrives for his general audience at St Peter's square on October 2, 2013 at the Vatican. AFP PHOTO / ALBERTO PIZZOLI

Pope Francis delivers a speech during his general audience at St Peter's square on October 2, 2013 at the Vatican. AFP PHOTO / ALBERTO PIZZOLI

Pope Francis greets the crowd as he arrives for his general audience at St Peter's square on October 2, 2013 at the Vatican. AFP PHOTO / ALBERTO PIZZ...

Pope Francis delivers a speech during his general audience at St Peter's square on September 25, 2013 at the Vatican. AFP PHOTO / ALBERTO PIZZOLI

Pope Francis greets the crowd as he arrives for his general audience at St Peter's square on September 25, 2013 at the Vatican. AFP PHOTO / ALBERTO P...

This handout picture released on October 1, 2013 by the Vatican press office shows (LtoR) Cardinal Reinhard Marx, Cardinal Laurent Monsengwo Pasinya,...

This handout picture released on September 30, 2013 by the Vatican press office shows Pope Francis during a meeting of cardinals known as a consistory...

This handout picture released on September 30, 2013 by the Vatican press office shows Pope Francis (back) during an international meeting for Peace pr...

This handout picture released on September 30, 2013 by the Vatican press office shows Pope Francis (R) during an international meeting for Peace promo...

This handout picture released on September 30, 2013 by the Vatican press office shows Pope Francis (R) shaking hands with a monk of Cambodia during an...

This handout picture released on September 30, 2013 by the Vatican press office shows Pope Francis (R) during a private audience with Patriarch Theodo...

Pope Francis (C) arrives to lead a Holy Mass on the occasion of the Day for Catechists at St Peter's square on September 29, 2013 at the Vatican. AFP...

Pope Francis leads a Holy Mass on the occasion of the Day for Catechists at St Peter's square on September 29, 2013 at the Vatican. AFP PHOTO / VINCE...

Pope Francis leads a Holy Mass on the occasion of the Day for Catechists at St Peter's square on September 29, 2013 at the Vatican. AFP PHOTO / VINCE...

Pope Francis leads a Holy Mass on the occasion of the Day for Catechists at St Peter's square on September 29, 2013 at the Vatican. AFP PHOTO / VINCE...

Pope Francis leads a Holy Mass on the occasion of the Day for Catechists at St Peter's square on September 29, 2013 at the Vatican. AFP PHOTO / VINCE...

Pope Francis leads a Holy Mass on the occasion of the Day for Catechists at St Peter's square on September 29, 2013 at the Vatican. AFP PHOTO / VINCE...

Pope Francis leads a Holy Mass on the occasion of the Day for Catechists at St Peter's square on September 29, 2013 at the Vatican. AFP PHOTO / VINCE...

Pope Francis leads a Holy Mass on the occasion of the Day for Catechists at St Peter's square on September 29, 2013 at the Vatican. AFP PHOTO / VINCE...

Pope Francis leads a Holy Mass on the occasion of the Day for Catechists at St Peter's square on September 29, 2013 at the Vatican. AFP PHOTO / VINCE...

Pope Francis leads a Holy Mass on the occasion of the Day for Catechists at St Peter's square on September 29, 2013 at the Vatican. AFP PHOTO / VINCE...

Pope Francis greet the crowd after a Holy Mass on the occasion of the Day for Catechists at St Peter's square on September 29, 2013 at the Vatican. A...

Pope Francis greets the crowd after a Holy Mass on the occasion of the Day for Catechists at St Peter's square on September 29, 2013 at the Vatican....

Pope Francis greets the crowd after a Holy Mass on the occasion of the Day for Catechists at St Peter's square on September 29, 2013 at the Vatican....

Pope Francis greets the crowd after a Holy Mass on the occasion of the Day for Catechists at St Peter's square on September 29, 2013 at the Vatican....

Pope Francis kisses a baby as he greets the crowd after a Holy Mass on the occasion of the Day for Catechists at St Peter's square on September 29, 20...

Pope Francis greets the crowd after a Holy Mass on the occasion of the Day for Catechists at St Peter's square on September 29, 2013 at the Vatican....

Pope Francis greets the crowd after a Holy Mass on the occasion of the Day for Catechists at St Peter's square on September 29, 2013 at the Vatican....

A handout picture released on September 27, 2013 by the Vatican's press office shows Pope Francis (R) speaking with Kyrios Kyrios Youhanna X Patriarch...

A handout picture released on September 27, 2013 by the Vatican's press office shows Pope Francis (C, L) greeting Kyrios Kyrios Youhanna X Patriarch-e...

Pope Francis (L) poses with Ahmet Uzumcu Director-General of the OPCW (Organisation for the prohibition of chemical weapons) during a private audience...

Pope Francis (L) shakes hands with Ahmet Uzumcu Director-General of the OPCW (Organisation for the prohibition of chemical weapons) during a private a...

Pope Francis (R) talks with Ahmet Uzumcu Director-General of the OPCW (Organisation for the prohibition of chemical weapons) during a private audience...

Pope Francis waves to pilgrims at the end of an audience with the Catechists at the Paul VI hall at the Vatican on September 27, 2013. AFP PHOTO /...

Youth take pictures of Pope Francis with their mobile devices, at the end of an audience with the Catechists at the Paul VI hall at the Vatican on Sep...

Mandatory Credit: Photo by REX/AGF s.r.l. (3035261a) Pope Francis I Papal Audience, St. Peter's Square, Vatican City, Rome, Italy - 25 Sep 2013